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Technological developments have penetrated various sectors of life, including in the transportation and communication lines in Indonesia. KAI Access is a digital service issued by PT Kereta Api Indonesia in the form of an application. This application is present as a strategic innovation to improve the convenience and comfort of customers in accessing various train services, from ticket bookings, schedule information, to cancellations and refunds. However, from the complaint data submitted by customers, there are two biggest problems that are often experienced, namely related to responsiveness and action from KAI Access which is considered slow in handling user complaints and technical problems. When quick response services are not accompanied by concrete settlement actions, customer trust tends to decline. This research is based on service theory with a service quality and excellent service approach, where the variables of responsiveness and action are the main focus in the analysis of customer loyalty. Using a quantitative approach, with data collection techniques in the form of questionnaires, interviews, and literature studies, the respondents in this study were KAI Access users from the Edan Sepur train loving community. The results showed that the action variable had a positive and significant influence on customer loyalty, while the responsiveness variable did not have a significant influence directly. An important conclusion from this study is that in the context of digital applications such as KAI Access, customers prioritize concrete problem solving rather than just quick response. Therefore, PT KAI needs to strengthen concrete actions in handling complaints to increase long-term loyalty. Therefore, PT KAI needs to strengthen concrete actions in handling complaints to increase long-term loyalty, especially in the era of digitalization of public services that continues to grow rapidly.

Currently, digital technology has transformed how governments operate and interact with their citizens. This development has brought significant changes to governance, especially at the village level. With the advancement of technology, village governments now have the opportunity to be more transparent, efficient, and responsive to the needs of their citizens. One of the efforts made is the utilization of village websites as a tool to build e-government, which facilitates access to information and services for the public. This study aims to analyze the communication strategy of the Government of Pandean Village, Ngawi Regency, in building e-government through the use of the village website. Using a communication strategy approach that includes audience analysis, message development, method determination, and media selection, this research seeks to provide an understanding of how the village government optimizes the use of technology to improve interactions with the community. The study adopts a descriptive qualitative approach, with data collection techniques including observation, interviews, and documentation. The results of the study show that the communication strategy of the Government of Pandean Village has been well implemented in two main aspects: audience analysis and message development. The village government has identified the information needs of its citizens and tailored the messages conveyed through the village website. However, the research also revealed shortcomings in the methods of delivery and media development, particularly in optimizing interactive features that could encourage public participation. Additionally, there is a need for increased use of social media and two-way communication features on the village website to strengthen public engagement in the development process and decision-making. Overall, while there has been progress in implementing e-government, there are still several aspects that need improvement to enhance the effectiveness of communication between the village government and the community.

The development of information technology has brought about significant changes in the social, economic, and legal life of global society. On the one hand, digitalization creates efficiency and convenience in various activities, such as financial transactions, communications, and access to information. However, on the other hand, this progress has also given rise to a new form of crime known as cybercrime. Cybercrime differs from conventional crime in that it is committed through electronic systems that can cross national borders and involve a large number of victims. This crime encompasses various forms, such as data hacking, online fraud, and malware distribution. This research aims to examine the development of cybercrime as a form of modern crime in the digital era and to assess the response of Indonesian criminal law to these challenges. The method used is normative legal, with a statutory, conceptual, and case study approach. This research also examines existing regulations, such as Law Number 11 of 2008 concerning Electronic Information and Transactions (ITE) and Law Number 27 of 2022 concerning Personal Data Protection, in addressing cybercrime issues. The research results show that although Indonesia has several regulations related to cybercrime, their implementation still faces various obstacles. Some of the main obstacles include suboptimal law enforcement, limited technology and human resources, and low levels of public digital awareness. Therefore, regulatory reform, institutional capacity development, and increasing public digital literacy are essential. This is part of a national strategy to address cybercrime comprehensively and sustainably, in order to create a safer and more trustworthy digital environment.

The development of information and communication technology has changed the global trade landscape, including in Indonesia. The city of Pekanbaru as the capital of Riau Province has great potential in the development of e-commerce that is integrated with the concept of a smart city. This research aims to analyze the optimization of e-commerce through the implementation of the smart city concept in Pekanbaru. Using a qualitative approach and secondary data analysis, this study examines technological infrastructure, government policies, and community participation in supporting the e-commerce ecosystem. The results show that the implementation of the smart city concept can improve the effectiveness of e-commerce platforms through improved digital connectivity, integrated payment systems, and more efficient logistics services. The adoption of technologies such as big data, Internet of Things (IoT), and geographic information systems (GIS) also supports more responsive decision-making, both by business actors and government agencies. In addition, the involvement of local MSMEs is an important component in expanding the adoption of e-commerce in an inclusive and equitable manner throughout the city. This research also highlights the importance of digital literacy among the public, including micro business actors, to optimize the use of digital technology in business transactions. The local government is expected to strengthen regulations, provide supporting infrastructure, and open cross-sector collaboration to accelerate digital transformation in Pekanbaru. A sustainable education strategy for the community is also needed through training, digital socialization, and technical support so that all levels of society can actively participate in the digital ecosystem. Thus, synergy between the government, business actors, academics, and the community is the main key in creating an adaptive, efficient, and sustainable digital ecosystem, as well as making Pekanbaru a smart city that excels in the field of electronic commerce.

The circulation of narcotics in Tanjungpinang City has increased from 2019 to 2023, despite various programs implemented by relevant agencies. Based on the data, there were 422 suspects apprehended, with 395 suspects acting as distributors (dealers) and 27 suspects as users. The presence of two main institutions, the National Narcotics Agency of Tanjungpinang City and the Narcotics Crime Unit of Tanjungpinang City Police, has not yet been fully effective in reducing the rate of drug trafficking. This study aims to analyze the application of collaborative governance in combating drug trafficking in Tanjungpinang City, based on the theory of Schottle, Haghsheno, and Gehbauer (2014) with seven indicators: willingness to compromise, communication, commitment, mutual trust, transparency/information exchange, knowledge sharing, and willingness to take risks. The method used is a descriptive qualitative approach. Data was collected through interviews and documentation. The research results indicate that willingness to compromise is reflected in cooperation such as joint investigations and coordination in handling suspects. Communication between agencies is conducted both formally and digitally, though not yet structured on a routine basis, it remains responsive. Commitment is demonstrated through Operation Antik, the BNNP prevention program, and the consistent and sustained participation of the DPC GANN. Mutual trust is built through open communication and recognition of each party's role. Transparency and information exchange are evident in the openness of data and access to information between agencies and the public, though technological challenges remain. Knowledge sharing is facilitated through contributions from the National Narcotics Agency (BNN), the police, and former offenders, fostering collective learning. Willingness to take risks is evident in the courage to adopt new approaches for innovation in drug eradication.

The competency development of the State Civil Apparatus (ASN: Aparatur Sipil Negara) is a key element in strengthening efficient, transparent, and accountable governance, especially in strategic sectors such as the procurement of goods/services and information systems. This study aims to analyze the implementation of ASN competency development policies in this field in Southwest Papua Province, as well as identify challenges and formulate adaptive solutions that are in accordance with local conditions. This study uses a qualitative descriptive approach with data collection techniques through observation and documentation in a number of agencies from the Bureau of Procurement of Goods and Services, the Communication and Information Service, the Regional Civil Service Agency, and several other related SKPDs. The data were analyzed using thematic analysis techniques to improve the validity of the findings. The results of the study show that the implementation of ASN competency development policies still faces obstacles in the form of limited understanding of regulations, low technical capabilities in the procurement and management of information systems, limitations of digital infrastructure, and a manual bureaucratic culture that is still dominant. The conclusion of this study emphasizes the importance of a competency development approach based on positional and contextual needs, with the support of adaptive regulations, continuous mentoring, and adequate digital infrastructure investment. This research contributes to the development of public administration science, especially in the formulation of ASN development policy implementation strategies that are more responsive to the challenges of disadvantaged regions and support the transformation of digital bureaucracy at the local level.  

In addition to improving interpersonal communication skills, this training also emphasized the importance of strategic communication in the context of advocacy and social mobilization. NGO administrators were trained to design campaign messages tailored to audience segments, including potential donors, corporate partners, and government stakeholders. An understanding of the importance of framing and emotional appeal was also emphasized, so that the messages delivered were not only informative but also able to inspire empathy and concrete action from the audience. During the training process, participants were also equipped with a basic understanding of digital communication, particularly in utilizing social media platforms as a tool to expand the reach of messages. Creative content strategies, effective posting scheduling, and the use of visual storytelling were introduced so that NGO administrators could build a positive image of their institutions in the digital space. These skills are crucial considering that the dynamics of public communication today are influenced by the speed and reach of social media.The positive impact of this activity was felt not only individually, but also institutionally.The NGO "Kakak Asuh" began to show an increase in public engagement through social media, an increase in the number of new volunteers, and the opening of opportunities for partnerships with external parties. This demonstrates that persuasive communication is not merely a means of conveying a message, but also a strategy for building strong, credible, and sustainable relationships with the wider community. Going forward, the sustainability of this training program is designed through a system of ongoing mentoring and support. This approach is expected to strengthen the implementation of the communication strategies learned and enable a comprehensive transformation of organizational communication. Thus, this PKM activity will not only have a short-term impact but also build a solid communication foundation to support the NGO's social mission in the future.

In addition to improving interpersonal communication skills, this training also emphasized the importance of strategic communication in the context of advocacy and social mobilization. NGO administrators were trained to design campaign messages tailored to audience segments, including potential donors, corporate partners, and government stakeholders. An understanding of the importance of framing and emotional appeal was also emphasized, so that the messages delivered were not only informative but also able to inspire empathy and concrete action from the audience. During the training process, participants were also equipped with a basic understanding of digital communication, particularly in utilizing social media platforms as a tool to expand the reach of messages. Creative content strategies, effective posting scheduling, and the use of visual storytelling were introduced so that NGO administrators could build a positive image of their institutions in the digital space. These skills are crucial considering that the dynamics of public communication today are influenced by the speed and reach of social media.The positive impact of this activity was felt not only individually, but also institutionally.The NGO "Kakak Asuh" began to show an increase in public engagement through social media, an increase in the number of new volunteers, and the opening of opportunities for partnerships with external parties. This demonstrates that persuasive communication is not merely a means of conveying a message, but also a strategy for building strong, credible, and sustainable relationships with the wider community. Going forward, the sustainability of this training program is designed through a system of ongoing mentoring and support. This approach is expected to strengthen the implementation of the communication strategies learned and enable a comprehensive transformation of organizational communication. Thus, this PKM activity will not only have a short-term impact but also build a solid communication foundation to support the NGO's social mission in the future.

Through seminars and leadership training, the goal of this community service project is to identify an effective leadership model that will enhance the work ethic of Jumantik employees in Setu Village, East Jakarta. Participating in the Effective Leadership program in enhancing work ethics were 100 Jumantik cadres from the village, the heads of the Development of Family Welfare of Setu Village, Cipayung District, and RW in the Setu Village neighborhood of East Jakarta. Lecture and coaching techniques are used in the training process. As a result of this training, a leader must employ effective leadership techniques to enhance work ethic when overseeing Jumantik cadres. To improve the motivation, accountability, and discipline of Jumantik cadres, one successful leadership model employs a transformational and participatory leadership style. This approach encourages open communication and fosters a sense of belonging among the cadres. It has been demonstrated that cadres who regularly monitor mosquito larvae perform better under leadership that offers clear guidance, emotional support, and active involvement in decision-making. Furthermore, the training emphasizes the importance of collaboration and teamwork, which are essential for achieving common goals. Jumantik cadre supervisors are advised to participate in leadership training since effective leadership would facilitate the development of a more inclusive and cooperative leadership model. Thus, it is anticipated that the effective sub-district eradication of Dengue Hemorrhagic Fever (DHF) will be facilitated by the adoption of the appropriate leadership paradigm, ultimately leading to healthier communities and improved public health outcomes. This is expected to make the public more vigilant and protected from potential online fraud in the future. Furthermore, increased legal literacy is expected to create a safer and more trustworthy digital transaction ecosystem for all parties.

Improving the quality of children's health is one of the main priorities in achieving the Sustainable Development Goals (SDGs), particularly in addressing stunting prevention in Indonesia. Stunting remains a serious challenge in public health development, especially among young children who suffer from chronic malnutrition. To tackle this issue, effective nutritional education is essential, especially for young mothers who play a central role in caregiving and determining their children's dietary intake. In line with the shift in information consumption patterns from conventional media to digital platforms, social media is becoming increasingly significant as a channel for health communication and education. One emerging phenomenon in this context is the rise of public figures from the medical profession actively sharing health-related content online, commonly referred to as “doctor influencers.” This study aims to analyze the digital communication strategies employed by doctor influencers, using the Instagram account @mizaafrizal, owned by Dr. Miza Afrizal, as a case study, focusing on how he educates young mothers about child nutrition. This research adopts a descriptive qualitative approach, utilizing data collection techniques such as content observation, in-depth interviews, and literature review on digital communication and health promotion. The findings indicate that Dr. Miza employs a persuasive and interactive communication strategy through the use of humanistic language, visually engaging content, and scientifically supported information in each post. He also leverages Instagram features like reels, stories, and the comment section to establish two-way communication with his followers. Dr. Miza’s credibility as a pediatrician enhances the reception of his messages. His approachable, clear, and educational style of delivery successfully captures the attention of young mothers and increases their understanding of the importance of nutrition in early childhood development. These findings highlight the influential role of doctor influencers as change agents in raising public awareness about child nutrition. Moreover, they contribute positively to digital-based health promotion efforts in Indonesia, showing the potential of social media as a powerful platform to support national health initiatives.  

In promoting a cultural arts performance, the success of an event is determined not only by the quality of the performance itself but also by the effectiveness of the marketing communication strategy implemented. In today’s digital era, organizers of cultural art performances face increasingly complex challenges, including shifts in audience media consumption behavior, rapid developments in communication technology, and the need to build sustained digital engagement between organizers and stakeholders.This study adopts the Integrated Marketing Communication (IMC) theory to examine the marketing communication strategies implemented by the Department of Culture and Tourism of Surakarta City in promoting the Solo International Performing Arts (SIPA) event in 2024. The research methodology includes in-depth interviews with organizers and document analysis of promotional materials and publication activities.The findings indicate that the department applied eight elements of integrated marketing communication: advertising, sales promotion, events and experiences, public relations and publicity, direct marketing, interactive marketing, mobile marketing, and personal selling. Each element was carried out synergistically to build awareness, attract public interest, and shape a positive image of the SIPA event in society.The implemented strategy has successfully reached a broader audience through digital channels such as social media and official websites, as well as through direct approaches like local media publications and collaboration with art communities. However, challenges remain in delivering more innovative and creative promotional content to enhance the event’s appeal. These findings offer important implications for cultural event managers, emphasizing the need for structured, consistent, and audience-relevant promotional strategies in the digital era. A well-integrated marketing communication approach not only strengthens public engagement but also reinforces the identity and sustainability of cultural events like SIPA on both local and international levels.

The Catholic Spiritual Revival (KRK) was a large-scale spiritual event organized by the Catholic Charismatic Renewal Body of the Diocese of Malang, aimed at revitalizing the faith and service spirit among Catholics in the post-COVID-19 period. Held on November 2, 2024, at the New Hongkong Ballroom Araya Malang, the event brought together participants from 18 different prayer communities, with a target audience of 1,200 people. To support the success of this initiative, the Publication Division—comprised of a community service team from the Faculty of Economics and Business at Ma Chung University—was tasked with planning and implementing an effective promotional strategy. The team focused on a cost-efficient and high-impact digital publicity approach, which included creating digital content for social media platforms, hosting webinars, and developing a targeted online promotion campaign. The implementation of this digital strategy proved to be highly successful. Ticket sales surpassed expectations, with over 900 tickets sold two weeks before the event and actual attendance exceeding 1,200 people. These outcomes demonstrated the strong appeal and reach of the event’s publicity efforts. In addition to increasing awareness, the visual and content strategies helped build community engagement and enthusiasm ahead of the event. This report presents a comprehensive review of the planning and execution phases of the publication strategy, highlighting key challenges, creative processes, and collaborative efforts. It also offers practical recommendations for future events of similar scale, especially in leveraging digital media to enhance participation and outreach. The success of KRK 2024 underscores the value of strategic communication and visual branding in religious and community-based events.

The Catholic Spiritual Revival (KRK) was a large-scale spiritual event organized by the Catholic Charismatic Renewal Body of the Diocese of Malang, aimed at revitalizing the faith and service spirit among Catholics in the post-COVID-19 period. Held on November 2, 2024, at the New Hongkong Ballroom Araya Malang, the event brought together participants from 18 different prayer communities, with a target audience of 1,200 people. To support the success of this initiative, the Publication Division—comprised of a community service team from the Faculty of Economics and Business at Ma Chung University—was tasked with planning and implementing an effective promotional strategy. The team focused on a cost-efficient and high-impact digital publicity approach, which included creating digital content for social media platforms, hosting webinars, and developing a targeted online promotion campaign. The implementation of this digital strategy proved to be highly successful. Ticket sales surpassed expectations, with over 900 tickets sold two weeks before the event and actual attendance exceeding 1,200 people. These outcomes demonstrated the strong appeal and reach of the event’s publicity efforts. In addition to increasing awareness, the visual and content strategies helped build community engagement and enthusiasm ahead of the event. This report presents a comprehensive review of the planning and execution phases of the publication strategy, highlighting key challenges, creative processes, and collaborative efforts. It also offers practical recommendations for future events of similar scale, especially in leveraging digital media to enhance participation and outreach. The success of KRK 2024 underscores the value of strategic communication and visual branding in religious and community-based events.

Advances in information technology-based financial services are beginning to follow suit, in the form of peer-to-peer lending, which provides easy access to loans without the need for conventional financial institutions. However, this convenience brings new challenges, particularly regarding the protection of users' personal data. Many platform providers access excessive amounts of sensitive information, such as contacts, photos, and other personal data, which can be misused to the detriment of borrowers. Therefore, this study aims to identify and analyze regulations related to personal data protection, particularly in the field of peer-to-peer lending services in Indonesia. It also analyzes the role of financial institutions, namely the Financial Services Authority (OJK), in addressing potential violations committed by platform providers. Using a normative legal approach, the study shows that despite the existence of these regulations, implementation in the field is suboptimal, particularly in terms of monitoring illegal platforms. Furthermore, challenges to oversight include limited resources and a lack of digital literacy among the public, which results in many users not fully understanding the risks of sharing their personal data. This study also highlights the importance of collaboration between the OJK, the Ministry of Communication and Information Technology, and law enforcement agencies to strengthen oversight mechanisms and take action against violations. In addition, extensive public education regarding personal data security is needed to encourage greater vigilance in using digital services. Personal data protection must be a top priority in the development of financial technology to prevent privacy violations. Strict regulations and effective sanctions are expected to provide a deterrent effect and create a healthy and equitable fintech ecosystem in Indonesia. This study also recommends that the government accelerate harmonization between the Personal Data Protection Law (PDP Law) and financial services sector regulations, particularly regarding service providers' transparency obligations in managing consumer data.  

Every air traveler needs to understand the importance of dangerous goods. By understanding the nature and risks of these items, precautions can be taken to prevent accidents and ensure safe travel for all. In practice, numerous passengers have experienced delays at security checkpoints due to carrying prohibited or restricted items such as lighters, sharp tools like scissors, aerosols, and high-capacity power banks. These incidents not only disrupt airport operations but also highlight gaps in public awareness regarding aviation safety regulations.This study aims to examine the influence of knowledge about dangerous goods on flight safety, with a focus on passengers traveling through El-Tari Airport in Kupang, East Nusa Tenggara. A quantitative research method was employed by distributing 100 structured questionnaires to respondents using purposive sampling, targeting passengers with prior flight experience. Data analysis techniques included simple linear regression, T-tests, and the coefficient of determination (R²) to assess the relationship between knowledge levels and safety behavior. The findings show that knowledge about dangerous goods (variable X) significantly influences passenger safety behavior (variable Y), evidenced by a p-value of 0.000. This indicates a strong and positive correlation, where better knowledge leads to more responsible behavior during air travel. The R-square value of 0.530 suggests that 53% of variations in safety behavior can be explained by knowledge, while the remaining 47% may be influenced by other factors such as attitudes, past experiences, signage visibility, and staff communication.These findings underscore the urgent need for intensified public education efforts at airports through visual campaigns, digital information, and pre-flight reminders. Improving passenger knowledge about dangerous goods can significantly enhance overall flight safety and reduce the risk of delays or violations. Future research could explore the role of demographic factors or the effectiveness of current educational strategies.

This study aims to analyze the role of social media as a strategic force in the campaign of legislative candidates from the Indonesian Democratic Party of Struggle (PDI Perjuangan) in the 2024 General Election. Amidst increasing internet penetration and social media usage in Indonesia, especially among the younger generation, social media has become a primary means of political communication. In this context, social media functions not only as a tool for disseminating information, but also as an interactive medium capable of shaping public perception, building political image, and significantly expanding campaign reach. This study uses a qualitative approach through literature review and content analysis of the social media accounts of several PDI Perjuangan legislative candidates, such as Ir. Bambang Wuryanto, Bagus Suryokusumo, and Muhammad Iqbal Adila. The results of the study indicate that strategic use of social media can increase political exposure and emotional closeness with constituents. Authentic, consistent content that emphasizes relevant political values has proven effective in attracting voter attention and building community engagement. Social media also allows legislative candidates to respond to current issues quickly and personally, and mobilize support more efficiently than conventional campaign methods. Thus, the findings of this study confirm that social media plays a very important role in modern political campaign strategies, and is one of the determining factors for success in legislative contests in the digital era.

he Role of Communication Networks in Supporting the Development of the Masjid Nusantara Program, a strategic initiative focused on the construction and empowerment of mosques across various regions in Indonesia. This study employs a descriptive qualitative approach using Social Network Analysis (SNA), with data collected through in-depth interviews with key informants from the Masjid Nusantara Foundation. The findings reveal that digital communication channels such as social media, WhatsApp, email, and the official website play a vital role in promoting the program, building public engagement, and mobilizing financial support. Internal coordination is carried out regularly and systematically through digital platforms, with local volunteers serving as the key communication bridges in the field. The established communication network involves various actors, including the central team, volunteers, donors, community leaders, and external partners, who collaborate in a participatory and coordinated manner.  

This study aims to analyze the effectiveness of Facebook and Instagram as public relations communication tools at MI Darun Najah Srobyong, Jepara. A qualitative approach was employed using observation, in-depth interviews with the public relations team, teachers, parents, and community leaders, as well as documentation analysis. The findings indicate that both platforms have contributed to improving information transparency, community engagement, and the school's public image. However, several challenges were identified, including limited human resources and digital literacy gaps among parents. The study recommends content management training, digital literacy programs, and enhanced two-way interaction to optimize the role of social media in elementary school communication strategies.

The digital media era is marked by a major shift in how information is accessed, produced, and disseminated. The internet and electronic devices such as smartphones enable anyone to become an information producer through social media, blogs, and other digital platforms. Media is no longer dominated by large institutions but also by ordinary individuals, creating a more democratic communication space. Digital communication enables the two-way exchange of messages in the form of text, images, audio, and video, accelerating the dissemination of information and strengthening collaboration across distances. However, challenges such as the spread of hoaxes and the ethical use of digital media still require attention. One form of active community participation is citizen journalism, where individuals cover and share local issues through digital media. This was evident in the OMK Week activities at Liwulagang Parish, which were documented by the OMK team through photos and videos. This documentation aims to preserve archives, serve as material for reflection, and expand publications to the congregation through social media, especially Facebook. The content shared emphasizes the spirituality, solidarity, and creativity of OMK, while also motivating the younger generation to become active in church life. To support citizens' ability to utilize digital media appropriately, journalism training was conducted to increase public understanding of the wise use of social media. The research methods used in this activity included data collection, outreach, and interviews, with results demonstrating the importance of open communication, feedback between presenters and participants, and active community participation.

Technological advances have brought about major changes in the world of media communication, influencing the way we interact, obtain information, and share content. The internet has become the main pillar of today's communication revolution. With easier and faster internet access, information can now be disseminated in real time to all corners of the world. The emergence of broadband technology, 5G networks, and satellite-based internet has further enhanced accessibility, even in areas that were previously difficult to reach. The rise of Instagram has provided an opportunity for environmental conservation communities to continue their advocacy efforts, and this has become a tangible example of the development of Digital Communication. The research conducted focuses on the use of hashtags in campaign types on Instagram. This research method employs a qualitative descriptive approach and a simple experiment using the tools slice.id. Data collection techniques include observation, interviews, and document studies from previous research conducted by the researchers and other researchers relevant to the study. The Ciliwung Depok Community is a community that plays a significant role in raising public awareness about the importance of preserving river ecosystems. The Ciliwung Depok Community is not involved in any political agenda; it is an independent NGO established to address concerns about the increasing transformation of the Ciliwung River from a source of life into a source of problems.