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This study aims to analyze the effect of price, green knowledge, and electronic word of mouth (eWOM) on purchase intention toward electric bicycles in Kediri City. A quantitative approach with a causal-comparative design was employed. Data were collected through an online questionnaire involving 112 respondents familiar with electric vehicle concepts, using purposive sampling. The validity and reliability tests confirmed that all research instruments were valid and reliable. Data analysis was performed using multiple linear regression with SPSS version 26. The results reveal that all independent variables have a positive and significant effect on purchase intention, with an R² value of 0.893. Among them, eWOM has the most dominant influence compared to price and green knowledge. These findings indicate that reasonable price perception, adequate environmental knowledge, and positive online reviews simultaneously enhance consumers’ purchase intention for electric bicycles. This study supports the Theory of Planned Behavior in explaining eco-friendly purchasing behavior and provides strategic implications for companies to apply value-based pricing, environmental education campaigns, and effective digital promotion strategies.

The use of plastic as planting containers remains a serious environmental issue due to its non-biodegradable nature, which can contaminate soil and water. One solution is to utilize rice straw waste as a raw material for biodegradable pots. This innovation can reduce dependence on plastic pots while providing ecological and economic benefits. Rice straw-based pots offer several advantages, including easy decomposition in soil, enhancing soil fertility, and reducing pollution caused by straw burning. This study aims to utilize rice straw waste to produce environmentally friendly biodegradable pots as an alternative to plastic containers. The method employed is Participatory Action Research (PAR), emphasizing collaboration between students and teachers through hands-on learning. The activities include socialization, practical training on making rice straw pots, participatory evaluation, and the use of the pots as planting media. The results showed that 100% of participants successfully produced high-quality rice straw pots, with positive responses reflected in high satisfaction and increased understanding of recycling concepts. The rice straw pots decompose within 2–3 months, add organic matter to the soil, and create opportunities for a circular economy. The main challenge identified is the relatively short durability of the pots, requiring innovations using natural adhesives or material combinations to enhance resilience. These findings reinforce the potential of rice straw as a solution for agricultural waste management and community empowerment toward sustainable agriculture.

The primary goal of this Community Service Program (PKM) is to assist local farmers in utilizing rabbit urine waste—previously discarded into a value-added product in the form of liquid organic fertilizer (LOF). This innovation aims not only to enhance technical production skills but also to stimulate local economic growth through entrepreneurship based on local resources. The program involves several strategic steps: designing a simple fermentation device using a 20-liter bucket equipped with an airlock and digital thermometer; providing technical training in the LOF-making process, quality control, and hygiene standards; offering entrepreneurial mentoring in production management, financial recording, branding, and marketing; and developing local distribution networks through farmer groups and agricultural shops. The results show that partners can independently produce consistent-quality LOF, packaged in 600 ml bottles with simple labeling for commercial appeal. The program improves technical and entrepreneurial skills, increases farmers’ income, fosters cooperation, and supports sustainable agriculture through environmentally friendly waste utilization.

The community service program activities that have been carried out are related to ecoprint techniques, which involve printing using natural materials such as leaves, flowers, and plant stems to produce patterns or motifs on fabric media. This training activity aims to enhance the knowledge and skills of the young girls in Bintungan Nagari, so they can be creative and innovative through ecoprint techniques. It provides knowledge and broadens their understanding of how to utilize the natural potential available in the environment around Bintungan Nagari. This training also aims to create environmentally friendly products to foster a healthy and clean environment. The hope for this activity is to have a positive impact on improving the knowledge and skills of young girls as the generation that brings about change. The training uses an approach of counseling, demonstration, training, and mentoring, along with evaluation. The results of the training program indicate a high level of enthusiasm from the participants, with knowledge and skills acquired, they have been able to produce sheets of fabric with unique motifs from the ecoprint technique. This has opened up space for participants to generate new ideas and create interesting motif patterns from natural materials. The products produced not only serve as a medium of expression but also have the potential to be developed as environmentally friendly, local creative products.

This study aims to analyze the multi-stakeholder perspectives on the development of the Pelawan Forest Biodiversity Park (Taman Kehati Hutan Pelawan) through the healing forest concept as an innovation in sustainable tourism in Central Bangka Regency, Indonesia. A mixed-method approach was employed, combining interviews, observations, and questionnaires involving 45 respondents from local government, tourism managers, communities, and visitors. The findings indicate a high level of understanding and support toward the healing forest concept, with Likert scale scores ranging from 4.1 to 4.4, reflecting strong agreement on the integration of conservation-based and mental-wellness tourism. Environmental comfort and tourist interest in the healing concept emerged as the main factors promoting the site’s development potential. Stakeholder perspectives reveal aligned objectives among the government, community, and tourism actors to establish Pelawan Forest as an environmentally friendly quality tourism destination. This research emphasizes the importance of multi-stakeholder collaboration and sustainable governance to ensure tourism development that provides economic benefits while maintaining ecological balance and enhancing visitors’ mental and physical well-being.

This study aims to analyze the operational feasibility of providing child-friendly recreational facilities at airport terminals to enhance service quality or Level of Service (LoS). A qualitative approach based on a literature review was used to examine various sources and previous research to evaluate the urgency, impact, as well as design and implementation strategies for child-friendly facilities at airports. Facilities such as play areas, breastfeeding rooms, and child-friendly toilets are expected to improve the experience of passengers, particularly families traveling with children, by providing additional comfort during their time at the airport. The findings indicate that the presence of these facilities significantly contributes to improving user perceptions of the airport’s service quality. The psychological comfort of family passengers is also enhanced, with safe and comfortable spaces for children. This not only creates a more inclusive environment but also provides operational benefits such as better terminal space management and efficiency. Child-centered design plays a crucial role in improving facility quality, where modular design is seen as a practical solution to adapt the facilities to the evolving needs of the terminal. Moreover, collaboration with private sectors is considered a strategic approach to support the provision of these facilities, given the substantial investment required. The study concludes that investing in child-friendly facilities at airports is a strategic decision, as it has the potential to enhance the airport's competitiveness. Well-designed facilities also improve user satisfaction and create a more comfortable travel experience. These findings are expected to serve as a reference for airport managers and provide a foundation for future research that quantitatively measures the impact of these facilities.

The use of fossil-fueled vehicles has long been a major cause of exhaust emissions that pollute the air and exacerbate global climate change. In an effort to address this problem, Indonesia has begun developing electric vehicles as a more environmentally friendly alternative solution. Electric vehicles (EVs) are considered capable of reducing dependence on fossil fuels while simultaneously reducing air pollution levels. The Indonesian government has demonstrated its commitment to supporting electric vehicle development by issuing several strategic policies, including Presidential Regulation (Perpres) Number 55 of 2019 concerning the Acceleration of the Battery-Based Electric Motor Vehicle Program for Road Transportation, and Presidential Instruction (Inpres) Number 7 of 2022 concerning the Use of Battery-Based Electric Motor Vehicles as official vehicles for central and regional government agencies. In line with these policies, research was conducted to assess the power consumption efficiency of the Ken Dedes electric vehicle prototype, designed using a 250-watt DC motor and a mid-drive system. The main focus of this research was to analyze the effect of variations in module input voltage and gear size on the vehicle's power consumption level. The method used was an experimental approach with a quantitative approach, where a series of tests were conducted on several gear combinations and input voltage levels. The results of the study indicate that variations in these two parameters—gear size and input voltage—significantly affect motor power consumption. The most optimal combination in this study achieved a power consumption efficiency of 6 Wh/km. This figure demonstrates the most energy-efficient performance in vehicle operation and can serve as a benchmark for further development of similar electric vehicles. This research provides an important contribution to efforts to encourage the use of more efficient and sustainable electric vehicles in Indonesia.

This study discusses the effect of valve weight and clearance on the efficiency of a hydraulic ram pump, with a focus on optimizing water discharge efficiency in the Sumberingin Tourism Area, Wringinsongo Village, Tumpang, Malang Regency. The method used in this study is an experiment with variations in valve weight consisting of 10 kg, 11 kg, and 12 kg, as well as valve clearances varying between 16.5 mm, 24.5 mm, and 32.5 mm. The results showed that the combination of a valve weight of 10 kg and a clearance of 16.5 mm produced the highest water discharge efficiency, namely 69.7 liters per minute, with an optimal efficiency of around 33%. In the optimization process, the application of Design of Experiment (DOE) revealed that a valve weight of 11 kg and a clearance of 16.5 mm can produce a maximum discharge efficiency of 63.155 with a desirability value reaching 0.7671. These findings indicate that proper settings on valve weight and clearance can contribute significantly to increasing the efficiency of a hydraulic ram pump. This research provides valuable insights into improving the performance and reliability of hydraulic ram pumps in rural water distribution systems. Understanding the influence of these variables is expected to yield more effective solutions for water resource management, particularly in areas requiring efficient irrigation systems. Furthermore, this research also opens up opportunities for further research on hydraulic ram pump optimization by considering other factors that can influence the efficiency and performance of the overall water distribution system. It is hoped that the results of this research can serve as a reference for the development of more efficient and environmentally friendly hydraulic ram pump technology, as well as supporting the sustainability of water resource management in rural areas.

This study aims to understand the perspectives of pastors from the Punguan Kristen Batak Church (GPKB) regarding disability-friendly services for congregants. As a faith community, the church has a significant responsibility to create an inclusive environment where every member, including those with disabilities, is accepted and served equally. People with disabilities are seen not only as part of human diversity but also as part of the whole body of Christ, and therefore, their service must be prioritized in church life. This research uses a qualitative descriptive analytical approach, with data collected through in-depth interviews with six pastors from GPKB districts in Indonesia to explore theological understanding, practical experience, and challenges in serving congregants with disabilities. Data analysis was conducted thematically to identify patterns of views, service practices, and obstacles that arise. The results show that 84% of pastors have a positive perspective on inclusive service and support congregants with disabilities. However, the study also found challenges such as inadequate physical facilities, minimal service strategies, and limited theological understanding of disabilities. In conclusion, a paradigm shift, capacity building for pastors, and ongoing institutional support are needed to create an inclusive and disability-friendly church.

This interactive study examines the impact of green marketing on the development of competitive capabilities in Iraqi companies, highlighting its role as a strategic approach for achieving sustainable market advantage. Green marketing involves environmentally responsible practices in product design, pricing, promotion, and distribution, which contribute to building brand reputation and operational excellence. The study explores the relationship between green marketing initiatives and enhancing firms' competitive capabilities, emphasizing how eco-friendly practices influence performance and strategic positioning. By analyzing green marketing theory, the study provides a comprehensive understanding of how sustainability-focused strategies can strengthen innovation, differentiation, and customer loyalty. It underscores the role of green marketing in improving long-term competitiveness and aligning business goals with environmental responsibility. Using empirical studies and diverse sources, the research demonstrates that green marketing is not merely a branding tool but a core element in building strategic advantages, especially within Iraq’s evolving market and regulatory environment. The findings reveal a positive relationship between green marketing practices and competitive capabilities. Environmentally driven strategies improve firm performance, enhance responsiveness to market demands, and reinforce brand value, enabling companies to thrive in dynamic business contexts. Consequently, the research recommends adopting green marketing as an integral component of strategic planning for Iraqi companies to ensure resilience, sustainability, and competitive growth. In conclusion, the study highlights the positive impact of green marketing on enhancing competitive capabilities in the Iraqi context, affirming its importance as a foundational pillar in business strategy to address environmental challenges and achieve long-term success. Furthermore, it suggests future studies explore the specific challenges and opportunities of implementing green marketing in different sectors.

This study aims to describe the implementation of the Community Economic Empowerment Program in the coastal area of Samber Village, Yendidori District, Biak Numfor Regency through the Kalamo Program (Modern Fishermen's Village). The approach used is qualitative descriptive with data collection techniques through in-depth interviews, observations, and documentation. The results of the study show that the implementation of the Kalamo Program has had a positive impact on the coastal community of Samber Village. In terms of improving skills and institutional access, it can be seen that there is training and the formation of cooperatives, although the management still needs to be improved. In terms of natural resource management, some communities have begun to implement more environmentally friendly fishing practices. Meanwhile, the improvement of the quality of life of the community can be seen from the increase in income and the emergence of new business opportunities, although it is not evenly distributed among all fishermen groups. Overall, the implementation of this program has been running, but it is not fully optimal. Further efforts are needed to strengthen institutional capacity, equitable program distribution, and increase socialization so that the empowerment goals can be achieved comprehensively.

Waste cooking oil that is disposed of without treatment can cause environmental pollution and endanger human health if continuously ignored. One innovative solution with economic value to address this problem is by producing mosquito-repellent aromatherapy candles. This activity, titled “LAMITA,” was carried out through entrepreneurship training and socialization provided to students and MSMEs (Micro, Small, and Medium Enterprises) in Banyumuncar, Banyuraden Village, Gamping, Sleman, Special Region of Yogyakarta. The training introduced techniques for processing unused cooking oil into eco-friendly mosquito-repellent aromatherapy candles, while also developing participants’ entrepreneurial skills. Students and MSME actors were guided step by step, starting from oil purification, mixing natural essential oils, to candle molding and packaging. The purpose of this activity was not only to promote environmental awareness but also to encourage creativity and innovation in producing high-value products from waste materials. The results showed that participants gained increased knowledge and skills in entrepreneurship, as well as awareness of the importance of managing waste responsibly. This activity highlights that entrepreneurship training combined with environmental sustainability can empower communities to generate economic benefits while contributing to health and ecological protection.

The rapid environmental degradation currently compels governments and organizations to implement effective preventive measures. This study highlights the urgent need for the implementation of Green Human Resource Management (GHRM) practices and Personal Moral Norms in enhancing Employee Green Behavior within the banking sector. As governments adopt policies related to GHRM, Personal Moral Norms, and Employee Green Behavior, banks, as financial institutions, play a strategic role in promoting sustainability. The objective of this research is to analyze the effects of GHRM and Personal Moral Norms on Employee Green Behavior in the banking sector. A quantitative approach was employed, utilizing a descriptive and associative research design, involving 92 employees from the studied bank branch, with a sampling technique using a census method. Data analysis was conducted using validity and reliability tests, as well as multiple regression analysis with the aid of SPSS 24. The results indicate that GHRM and Personal Moral Norms significantly influence Employee Green Behavior, contributing to 97.8% of the variance in environmentally friendly behavior. These findings provide new insights into the importance of integrating Green values into human resource management and underscore the necessity for banks to adopt policies that support environmental sustainability. This research is expected to serve as a reference for banking institutions in formulating more effective strategies to enhance environmental awareness among employees.

Mozzarella cheese is traditionally made using rennet, an enzyme derived from the stomach lining of ruminant animals that plays a key role in coagulating milk. While effective, rennet has certain limitations such as its limited availability, relatively high cost, and concerns among vegetarians and certain religious groups regarding its animal origin. As a result, alternative coagulants that are easier to obtain, plant-based, and more environmentally friendly have gained interest. One such natural ingredient is lemon juice, which contains citric acid and can mimic the coagulation effect of rennet. This study aims to explore the effectiveness of lemon juice as a rennet substitute in the production of mozzarella cheese, specifically when applied in a food product like cheese-stuffed potato balls. The research involved organoleptic testing by 30 panelists to evaluate five sensory aspects: color, aroma, taste, texture, and overall acceptance. Several formulations were tested, and the sample containing 20 ml of lemon juice, 2 grams of citric acid, and an additional herb mix (Sample C) was rated the highest in preference across most parameters. The findings suggest that lemon juice is a viable alternative to rennet in mozzarella cheese making, particularly for small-scale or home-based production. It not only delivers acceptable sensory qualities but is also more accessible and affordable. Moreover, using lemon juice supports the development of more sustainable and vegetarian-friendly food options. In conclusion, lemon juice can successfully replace animal-based rennet, making mozzarella cheese production more inclusive, cost-effective, and environmentally conscious.

Sustainable tourism aims to maximize the potential of travel destinations while maintaining a careful balance between social, economic, and environmental factors, and coastal tourism such as that found at Mutun Beach in Lampung illustrates both the promise and the urgency of this approach. Coastal tourism is one of the fastest-growing segments of the global travel industry, offering visitors natural beauty, recreational activities, and cultural experiences that generate significant income for local economies. In Indonesia, beaches are major attractions that can boost regional development through job creation, small business opportunities, and improved infrastructure. Mutun Beach, a well-known coastal destination on the southern coast of Sumatra, contributes greatly to the Regional Original Income (PAD) of Lampung Province and provides livelihoods for surrounding communities. Yet despite its popularity, the area continues to face persistent problems such as weak administrative management, limited community participation, inadequate facilities, and signs of environmental degradation, all of which threaten its long-term sustainability. This service project therefore focuses on designing a comprehensive plan for sustainable tourism growth at Mutun Beach for the 2025–2030 period. A participatory strategy is employed through Focus Group Discussions (FGD) involving local government, tourism stakeholders, community members, academics, and potential investors to ensure inclusive decision-making. The resulting five-stage roadmap emphasizes strengthening tourism regulations, constructing eco-friendly infrastructure, empowering residents with training and entrepreneurial opportunities, creating tourism products that highlight environmental and cultural values, and adopting digital marketing to reach broader audiences. Success indicators include increased regional revenue, rising visitor numbers, higher tourist satisfaction, and measurable improvements in coastal environmental health. Implementing this roadmap is urgent because coastal tourism directly supports economic growth, provides steady employment, and safeguards natural resources, ensuring that Mutun Beach remains both competitive and environmentally resilient for generations to come.

The global ecological crisis demands that the church reconsider its calling as a participant in the missio Dei, which encompasses the restoration of all creation. This study aims to examine the concept of eco-missional stewardship as a model of Christian leadership that integrates spirituality, mission, and ecological responsibility. Using a theological-descriptive approach, this study interprets biblical texts and contemporary theological literature to formulate a leadership paradigm oriented toward the care of creation. The results show that stewardship leadership positions Christian leaders as stewards of God's will, guiding the church to live in harmony with creation through love, justice, and sustainability. Leadership rooted in ecological spirituality affirms that caring for the earth is an active expression of faith. Thus, eco-missional stewardship becomes a theological paradigm that expands the church's mission from human salvation to the reconciliation of all creation. These findings contribute to the development of a contextual and environmentally friendly theology of leadership.

White Feces Disease (WFD), which infects Pacific white shrimp (Litopenaeus vannamei), poses a serious challenge in aquaculture due to its potential to cause mass mortality and substantial economic losses. One of the main causes of this disease is bacterial infection from the genus Vibrio. The use of natural substances, such as garlic (Allium sativum) extract, is considered a more environmentally friendly and sustainable alternative for disease control. This study aimed to examine the effect and determine the optimal concentration of garlic extract in inhibiting the growth of Vibrio sp. isolated from WFD-infected L. vannamei ponds, cultured on TCBS media. The study was conducted in vitro using the disc diffusion method with four extract concentrations (25%, 50%, 75%, and 100%) against two bacterial isolates, designated as isolate A and isolate B. The results showed that garlic extract was able to inhibit the growth of Vibrio sp., with the largest inhibition zone observed in isolate A at 75% concentration (14.8 mm) and in isolate B at 100% concentration (19.3 mm). These findings indicate the potential of garlic as a natural antibacterial agent to inhibit pathogenic bacteria and support the sustainability of shrimp aquaculture.

This study aims to analyze various sustainable food processing innovations that contribute to improving public health in Indonesia. The research was conducted through a literature review of 13 scientific articles published between 2015 and 2025 that discussed aspects of nutritional innovation, environmentally friendly processing technology, social empowerment, and food waste management. The analysis results indicate that the use of local food ingredients such as moringa leaves, snakehead fish, and soybeans plays a significant role in improving nutritional literacy, preventing stunting, and strengthening family food security. Meanwhile, the application of appropriate technologies such as oil draining machines, energy-efficient dryers, and waste processing into organic fertilizer contributes to production efficiency and reduced environmental impact. Furthermore, social innovation through the empowerment of MSMEs and women's groups can strengthen the local economy and foster environmental awareness. Thus, the synergy between nutritional, technological, and social innovations forms the basis for developing a healthy and sustainable food system to support the achievement of SDGs 2 and 3 in Indonesia.  

The Community Service Program (KKN) in Pematang Kasih Village, Pantai Cermin District, focused on the construction of owl houses (RUBUHA) as an environmentally friendly effort to control rice field rats. The background to this activity was the high level of rat infestation that was detrimental to local farmers' rice harvests and the excessive use of chemical pesticides, which had the potential to negatively impact human health and ecosystem balance. The research method used was descriptive qualitative, with data collection techniques through direct observation in agricultural fields, interviews with farmer groups, and documentation of the owl house construction process. The results showed that the village community responded positively to this program because the use of owls as natural predators was proven to be more effective in controlling the rat pest population while reducing dependence on chemical pesticides. In addition, this program also increased public awareness of the importance of ecologically based pest control and preserving biodiversity. With the owl houses built around rice fields, it is hoped that a sustainable agricultural pattern can be created that supports the welfare of farmers while preserving the environment.

This Community Service Program (KKN) was implemented as an effort to address the health and environmental risks associated with the use of chemical-based dishwashing soap. The program’s lack of knowledge and skills in making natural household products among women underpins the program’s implementation. The goal was to raise awareness and empower women through training in making environmentally friendly dishwashing soap. The program was conducted at the Women’s Witness Building and included outreach, demonstrations, hands-on practice, discussions, and the sharing of results. During the workshop, participants were taught how to make soap using simple ingredients such as baking soda, liquid soap, water, and the addition of glycerin, dyes, and fragrances. The results demonstrated high enthusiasm from the participants, reflected in their active involvement during the workshop and their understanding of the benefits of natural products. This activity not only improved the women’s skills but also encouraged a frugal, healthy, and environmentally conscious lifestyle.