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The development of science and technology has encouraged the utilization of graph theory in solving optimization problems, particularly in transportation systems and tourism route planning. Medan City, as a metropolitan area with dense road networks and widely dispersed tourist destinations, faces challenges in selecting efficient travel routes. This research aims to determine the optimal route between tourist destinations in Medan City using the Minimum Spanning Tree (MST) method with Prim’s Algorithm. The research was conducted using a weighted graph modeling approach, where each tourist destination is represented as a vertex and the distance between destinations is represented as an edge weight. Distance data and estimated travel time were obtained through digital mapping using Google Maps and then analyzed through iterations of Prim’s Algorithm to produce a minimum spanning tree without forming cycles. The results show that all 23 tourist destinations are successfully connected in a single MST structure with a minimum total distance of 68.97 km and a travel time of approximately 199 minutes or 3 hours and 19 minutes. This model is expected to serve as a reference for tourism planning and support urban transportation efficiency based on mathematical computation.

The rapid advancement of digital technology has significantly transformed the economic landscape, particularly in payment systems that are shifting from conventional cash transactions to the use of Electronic Money (E-Money). E-Money has become increasingly popular due to the convenience it offers, allowing users to conduct transactions anytime and anywhere without the need to carry physical cash. As this payment innovation continues to expand, it is essential to examine whether its mechanisms comply with Islamic principles, given that the use of E-Money is closely related to the values of muamalah in Islam. This study aims to identify the underlying contractual structure (akad) governing Mandiri E-Money transactions and to assess its conformity with sharia principles. It further analyzes the potential presence of gharar, riba, or maisir within the top-up and transaction processes, as well as the sharia mitigation mechanisms that may be applied. The research employs a normative approach based on classical and contemporary Islamic legal theory, supported by observational analysis of Mandiri E-Money practices. Data were analyzed qualitatively using a descriptive method and maqashid al-shariah reasoning. The findings indicate that the use of Mandiri E-Money does not involve elements of riba, gharar, or maisir, and therefore does not deviate from sharia principles. These potential risks were examined through fiqh legal maxims and DSN-MUI fatwas to ensure comprehensive sharia compliance.

This community service activity aims to improve the efficiency of inventory management at Zencha MSMEs through the design and implementation of a Standard Operating Procedure (SOP) and a spreadsheet-based inventory recording system. Prior to this program, Zencha MSMEs managed its inventory manually without written procedures, which often caused stock discrepancies, delays in restocking, and difficulties in monitoring raw material availability. The methods used in this activity included observation, interviews, SOP design, system socialization, and direct implementation assistance. The SOP was structured to regulate the process of receiving, recording, storing, and using raw materials, while the spreadsheet template functioned as a digital tool to record stock movements automatically. The results show that after the implementation, inventory management became more organized, transparent, and measurable. The business owner was able to monitor stock levels more accurately, determine restocking time more effectively, and reduce the risk of stock shortages. In addition, employees demonstrated better discipline in recording inventory according to established procedures. This program proves that the implementation of SOP and digital-based inventory recording can significantly improve operational efficiency and support the sustainability of micro and small enterprises.

The intersection between digital transformation and the halal economy has created new pathways for sustainable global development. This study explores how the Halal Digital Ecosystem (HDE)—an integrated network of producers, certifiers, regulators, and consumers—contributes to sustainable growth by aligning digital innovation with Islamic ethical principles. Employing a mixed-method explanatory sequential design, the research combines quantitative analysis using Structural Equation Modeling–Partial Least Squares (SEM–PLS) with qualitative interviews involving policymakers, halal entrepreneurs, and certification authorities from Indonesia, Malaysia, and GCC countries. The findings reveal that digital infrastructure readiness and certification transparency significantly influence sustainable growth, while innovation capability acts as a mediating factor that strengthens the relationship between digitalization and sustainability outcomes. Qualitative insights highlight persistent challenges, including fragmented cross-border governance, limited digital literacy among halal SMEs, and the absence of harmonized certification standards. These barriers indicate that achieving sustainability requires not only technological advancement but also ethical and institutional alignment based on maqāṣid al-sharī‘ah. The study introduces the Halal Digital Ecosystem–Sustainability (HDE–S) Framework, providing both theoretical and practical contributions to the literature on sustainable digital economies. Policy implications emphasize the need for integrated halal digital governance, capacity building, and regional collaboration to enhance competitiveness, inclusivity, and ethical compliance in the global halal market.

Digital transformation has become a major driver of global economic growth while creating new challenges in the form of disparities between developed countries (Global North) and developing countries (Global South). This study aims to analyze the role of digital inclusion in bridging these disparities to achieve sustainable prosperity. The research method used is descriptive qualitative with a literature review approach to various international reports and publications from ITU, World Bank, UNDP, and OECD. The results of the analysis show that effective digital inclusion is not only determined by infrastructure development, but also by increased digital literacy, equitable access, and adaptive public policies. Countries that implement comprehensive digital inclusion strategies show significant improvements in economic productivity, access to education, and equitable social welfare. The conclusion of this study confirms that digital inclusion is a strategic instrument in realizing fair, inclusive, and sustainable global development.

Digital transformation through adoption cloud technology has become catalyst in effort efficiency energy and reduction greenhouse gas emissions glass (GHG). Research This aim for analyze contribution cloud technology against efficiency operational and impact the environment in framework economy green. With use approach studies literature and secondary data analysis from report institution international and journals scientific, research This find that migration to cloud computing can reduce consumption energy up to 84% and emissions carbon up to 88% compared to with traditional IT infrastructure. These results show that cloud computing is not only solution technology, but also important strategy in support development sustainable.

Early Childhood Education (PAUD) holds a very important role in shaping children’s character, moral values, and foundational knowledge. As an effort to support the success of education, good quality learning outcomes are required as a benchmark for children’s holistic development. In this context, educator management becomes one of the keys to improving the quality of learning outcomes. PAUD Al-Qur’an (PAUDQU) is an early childhood education institution that prioritizes Al-Qur’an education and Al-Qur’an memorization (tahfidz) as its institutional uniqueness. The findings of this research show that the educator management implemented in PAUDQU in Setu Bekasi District is quite good, as almost all elements within the scope of educator management have been carried out by the school. However, there are several obstacles found in its implementation, such as the educators’ competencies that have not been maximized, particularly in Al-Qur’an recitation (tahsin) and tahfidz, as well as the promotion, compensation, and educator assessment systems that are not yet well-structured. KIPAS EVA, an acronym for Competence Implementation Evaluation Appreciation, was developed with the expectation of being easier to remember, thus supporting the process of applying educator management in the future. This management strategy emphasizes educator planning by strengthening competencies, professional learning implementation by educators, continuous educator evaluation, and providing appreciation to increase educator motivation.

This research undertakes a comparative analysis of the concept of divorce within the frameworks of Islamic Family Law and Buddhist Ethics. Marriage, recognized as a profound bond of both physical and spiritual union, holds significant value in both religious traditions. However, contemporary social realities reveal a high incidence of divorce, prompting a critical examination of the legal and ethical mechanisms governing its dissolution. Within Islamic jurisprudence, divorce (talak) is permitted but considered detestable by Allah, governed by stringent procedural mechanisms including talak (the husband’s right), khulu’ or gugat cerai (the wife’s right to initiate), and fasakh (judicial intervention). These processes carry clear legal implications concerning the waiting period (iddah), the possibility of reconciliation (rujuk), and the division of marital property. Conversely, while Buddhism does not explicitly prohibit divorce, the teachings of the Buddha strongly encourage spouses to exhaust all avenues for peaceful conflict resolution before considering separation as a last resort. The ethical framework in Buddhism grants equal rights to both parties to dissolve the marriage. This study employs a qualitative descriptive analytical method through library research, drawing upon primary legal texts such as Indonesia’s Law No. 1 of 1974 on Marriage and the Compilation of Islamic Law (KHI) for Muslims, alongside the Vinaya Pitaka for adherents of Buddhism. The findings indicate that while both traditions view divorce as a final option, they diverge fundamentally in their legal structures; Islamic law establishes specific, gender-differentiated rights and obligations, whereas Buddhist ethics emphasize mutual consent and personal responsibility without formal legalistic procedures. The research concludes by recommending that couples, regardless of faith, prioritize reconciliation and peace, aligning with the core principles of both religions, and urges policymakers and legal practitioners to promote harmonious family life and reconsider legal frameworks that might better serve the welfare of children and families.

The rapid advancement of digital technology has fundamentally transformed civil legal interactions, making electronic documents such as instant messages, online transactions, and digital contracts primary forms of evidence in many civil disputes. However, their admissibility in judicial proceedings remains fraught with challenges concerning formal and material validity. This study aims to identify juridical and technical obstacles in digital evidence and to formulate an ideal model for civil procedural law that ensures reliable electronic proof. A normative-juridical approach with qualitative analysis was employed, combining doctrinal research through legislative review, jurisprudence, and scholarly literature with case studies of court decisions involving electronic evidence, particularly in divorce disputes. The findings reveal that inconsistent judicial treatment stems from the absence of specific procedural rules in Indonesia’s civil procedure framework still rooted in colonial-era HIR and RBg alongside limited digital infrastructure and low technological literacy among judicial actors. In response, the study proposes an integrated legal construction model featuring explicit provisions in the upcoming Civil Procedure Code, adoption of the functional equivalence principle, institutionalization of digital forensic experts in litigation, and procedural safeguards for vulnerable parties. The research concludes that only through holistic reform of the evidentiary paradigm can Indonesia’s civil justice system guarantee fairness, legal certainty, and relevance in the digital era.

The development of information technology has produced a significant transformation in election administration mechanisms, including within the City of Palangka Raya. The digitalization of various services and information systems requires the General Elections Commission (KPU) to enhance transparency while simultaneously ensuring the security of voter data and election results. This study aims to examine the key challenges faced by the Palangka Raya KPU in balancing the need for information openness with data protection in the digital era. The research employs a qualitative descriptive method through literature review, direct observation, and structured interviews with KPU staff, election supervisors, and relevant stakeholders. The findings indicate that digitalization improves the effectiveness of public information dissemination, including through the use of Sidalih and Sirekap, yet it also introduces vulnerabilities such as potential voter data breaches, cyberattacks, and the spread of disinformation through social media. Moreover, limitations in human resources with technological expertise serve as constraints in optimizing digital security. Conversely, the implementation of data security standards and improvements in voter digital literacy contribute to strengthening public trust in the election process. Thus, the Palangka Raya KPU needs to reinforce cybersecurity infrastructure, enhance internal technical capacity, and broaden public education programs to safeguard electoral integrity amid increasing transparency demands and digital risks. Collaboration among government, academia, and the community is a strategic element in maintaining the quality of democracy in the digital era.

Global environmental challenges require active engagement from all sectors, including education. For Muslim youth, awareness of environmental sustainability aligns with Islamic ethical principles such as stewardship (khalifah), justice (ʿadl), and social welfare (maslahah). This study examines the influence of green economy education within Islamic higher education on students’ eco-literacy, ethical awareness, and sustainable economic behavior. A quantitative approach was employed using a structured questionnaire distributed to students from both Islamic economics and non-economics programs. Data were analyzed with descriptive statistics, independent t-tests, and one-way ANOVA to identify differences in environmental knowledge, attitudes, and behavior. Findings show that students with an Islamic economics background consistently achieve higher scores in knowledge, attitudes, and behavioral engagement related to sustainability compared to non-Islamic economics students. Integrating Islamic ethical values into the curriculum provides a holistic framework for internalizing sustainability principles, encouraging students to translate ethical knowledge into practical action. Pedagogical strategies such as project-based learning, reflective exercises, and experiential programs further enhance engagement and eco-conscious behavior. The study highlights the critical role of Islamic education in fostering a generation of ethically aware and environmentally responsible students. By embedding moral and ecological principles in academic programs, educational institutions can strengthen students’ capacity for sustainable decision-making and support broader goals of responsible economic and environmental stewardship.

The rapid development of information technology has encouraged organizations to implement computerized systems to improve document management efficiency and security. At PT Petrokimia Gresik, import document archiving was previously conducted using Google Drive and physical storage, which caused issues such as limited access control, risk of data loss, and slow document retrieval during audits. This study aims to design and develop a web-based Import Document Archiving Information System using the waterfall development method. The system was built using HTML, CSS, JavaScript, PHP, and MySQL. The results indicate that the system improves archiving efficiency, enhances data security, accelerates document search, and supports structured monitoring and validation processes.  

This study aims to gain an in-depth understanding of the influence of user experience and e-service quality on user satisfaction with the MyTelkomsel mobile application. This research was conducted using a descriptive qualitative method along with data collection techniques in the form of semi-structured interviews and direct observation of active users of the MyTelkomsel application in the city of Medan. Data was obtained from 10 informants selected using purposive sampling techniques, supported by documentation of user interactions with the application. The results of the study indicate that ease of navigation, informative interface display, application response speed, and service feature reliability are the main factors that shape user satisfaction. Users tend to feel satisfied when the application is able to provide a comfortable, efficient, and responsive user experience that meets their needs. The findings of this study are expected to provide strategic input for Telkomsel in improving user experience and service quality as an effort to strengthen customer satisfaction and loyalty.

The limited number of studies examining organizational communication patterns within technical government institutions a research gap, particularly in understanding how communication mechanisms are implemented by public relations units in technical based governmental organizations. This research aims to identify the communication patterns applied by the Public Relations Unit of the Geological Survey Center (PSG) in Bandung, as well as the supporting factors and challenges encountered in its implementations. The study employs a qualitative descriptive approach wih data collected through interviews, observations, and literature review. The findings reveal that the organizational communication pattern operates in multiple directions using both formal communication channels, such as official letters and scheduled meetings through the Nadine system, and informal channels, including face-to-face interactions and digital messaging through WhatsApp. Supporting factors in the communication process include leadership support, a well-defined organizational structure, a collaborative work culture, and the availability of adequate communication facilities and media. However, several constraints remain, including technical and non-tehcnical challenges such as varying work priorities, inconsistents responses times, and unstable network connectivity during field activities.

Hypertension is a non-communicable disease with a high prevalence in Indonesia, including in Tasikmalaya City, and shows a trend of increasing cases from year to year. This condition requires planned promotive and preventive efforts that involve community participation. This study aims to increase public knowledge about hypertension and the importance of physical activity as a preventive measure through the SERASI (Senam Raga Sehat, Cegah Hypertensi) program. The methods used include community-based health education, blood pressure checks, pre- and post-tests to measure changes in knowledge, and structured healthy exercise activities. The results showed a significant increase in knowledge after the intervention, reflected in the difference in pre- and post-test scores with a p value of 0.000 (p < 0.05). In addition, healthy exercise activities increased community participation and involvement, and encouraged the formation of sustainable physical activity habits. Overall, the SERASI program has proven effective in increasing community knowledge, awareness, and behavioral changes towards hypertension prevention, thus potentially supporting risk factor control and improving the quality of local community health. These findings are relevant for planning sustainable local and national community-based public health programs.

This study looks at how the Contextual Teaching and Learning (CTL) model is used in Christian Religious Education (CRE) and checks how it helps students develop their critical thinking abilities. In today’s education system, students are not just expected to remember Bible stories, but also to understand what they mean, think about the moral lessons, and use Christian values wisely in their everyday lives. However, past observations show that CRE classes often use a lot of lectures and memorization, which doesn’t give students much chance to think deeply or link what they learn to real-life situations. The CTL model provides a better way for learning by using seven key parts: constructivism, inquiry, questioning, learning community, modeling, reflection, and real-world assessmen. A descriptive qualitative design was employed involving CRE teachers and students selected purposively from classes that have integrated CTL in online and face-to-face settings. Data were collected through classroom observations, semi-structured interviews, and instructional documents. The analysis followed Miles and Huberman’s stages of data reduction, display, and conclusion drawing, supported by triangulation to strengthen credibility. The findings reveal that CTL enhances student engagement, promotes higher-order reasoning, and supports the internalization of Christian values in real-life contexts. Supporting factors include a positive school climate, parental involvement, and teacher readiness, whereas obstacles emerge from limited facilities, large class sizes, and insufficient teacher understanding of CTL. The study underscores the need for context-based and character-oriented instructional designs in CRE.

The Sustainable Development Goals (SDGs) are a global agenda that emphasizes the importance of balancing economic growth, social justice, and environmental sustainability. In Indonesia, the primary challenge in achieving the Sustainable Development Goals (SDGs) lies in the limited financing of sustainable development projects. Sukuk, particularly green sukuk, is a sharia-compliant financial instrument with the potential to provide an alternative solution to support funding for environmentally friendly projects and green infrastructure. This study aims to analyze the role of sukuk in financing sustainable development, identify its potential and implementation challenges, and compare it with other national financial instruments. This study employed a library research method through a literature review of books, scientific journals, articles, and empirical data related to sukuk development. The results show that demand for sukuk is increasing compared to conventional bonds and provides a competitive financing alternative based on sharia principles. However, its implementation still faces obstacles such as financial literacy, regulatory readiness, market liquidity, and limited institutional coordination. Strengthening regulations and stakeholder collaboration are necessary for sukuk to effectively support the achievement of the Sustainable Development Goals (SDGs).

This research is motivated by the increasing amount of waste caused by high levels of public consumption, limited waste management facilities, and low environmental awareness. Lyfe With Less, an eco-friendly community, utilizes the function of Public Relations to deliver information and raise public awareness. This study aims to (1) identify the #SalingSilang campaign message conducted by Lyfe With Less, (2) examine the attitudes of Instagram followers of @lyfewithless toward the campaign, and (3) measure the influence of the #SalingSilang Public Relations campaign message on followers’ attitudes. The research applies the Campaign Message Design Theory, which includes message content, structure, and framing, as well as the Attitude Component Theory, which covers cognitive, affective, and conative aspects. A quantitative approach was used with a survey method by distributing questionnaires to 81 respondents selected randomly through probability sampling. The results show that the #SalingSilang campaign message received positive responses and had a significant and strong influence on followers’ attitudes. Within the Public Relations campaign message, the key message was found to be the most influential factor in the message content dimension, while in followers’ attitudes, the conative component showed the greatest change, particularly in reducing overconsumption and encouraging the optimal use of products.

This research aims to analyse the implementation of digital innovation in passport services at the Class I Immigration Office Tanjung Perak as part of bureaucratic reform and Good Governance initiatives. The study employed a qualitative case study approach, involving in-depth interviews, participatory observation, and document analysis, to assess the successes and challenges of digital systems such as SIMKIM and M-Paspor. The findings reveal that digital innovation has successfully improved operational efficiency and generally provided transparency into costs and application status, whilst reducing queuing times and increasing service speed, thereby enhancing public satisfaction and trust in immigration services. However, the innovation has not fully addressed structural and cultural bureaucratic barriers, as field officers tend to become passive when systems experience errors or delays, struggling to provide detailed explanations about issues, which results in information ambiguity and potentially undermines procedural transparency and performance accountability principles. The study concludes that bureaucratic reform in the immigration sector requires internal cultural updates and enhanced human resource competencies to support comprehensive transparency and accountability. Digital infrastructure instability and officers' discretionary authority significantly influence the effectiveness of digital innovation. Whilst digital innovation offers substantial benefits in efficiency and transparency, its success depends heavily on strengthening systems, improving human resource skills, and fostering organisational cultural change, with continuous efforts essential for achieving effective, transparent, and accountable public service.

This study aims to explore the implementation of Standard Operating Procedures for immigration services at TPI Tanjung Priok Port and examine its impact on service effectiveness in Indonesia's maritime sector. The research employed a qualitative approach to analyse the gap between formal SOP guidelines and on-the-ground practices, examining internal and external factors, including resource limitations, technological constraints, and inter-agency coordination issues. The findings reveal significant disparities that lead to both positive and negative discretion amongst frontline Immigration officers, influencing service consistency, efficiency, and transparency. Negative discretion results in procedural deviations that compromise reliability and potentially foster corruption, delays, and inefficiencies. In contrast, positive discretion emerges as adaptive responses indicating weaknesses in SOP design or infrastructure. The study concludes that enhancing frontline officers' competence, motivation, and accountability is essential for achieving desired outcomes, whilst integrating technological solutions such as digital documentation and real-time monitoring is vital for streamlined, transparent, and accountable procedures. Improving SOP adherence, coupled with better resource allocation and inter-institutional cooperation, can significantly reduce vessel turnaround times, lower logistics costs, and bolster maritime competitiveness. The research advocates for dedicated training programmes, supervisory systems, and technological innovations to ensure SOP compliance, minimise discretion-driven deviations, and promote accountability, thereby optimising maritime service delivery and supporting Indonesia's strategic maritime development objectives.