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The purpose of this study was to focus on the development and feasibility testing of the Ekorama Pop-Up Book as a learning medium, as well as to assess its practicality and effectiveness in helping fifth-grade elementary school students master science concepts related to food chains. Research and Development (R&D) using the ADDIE model—which begins with analysis and ends with evaluation—will be applied in this study. The participants include media and content experts, teachers, and 19 fifth-grade students at MIN 8 in Medan. Data were collected using response questionnaires, concept comprehension tests, and validation sheets. The results of the expert validation indicated that the category was highly valid, highly practical (96.7%), and highly effective (N-Gain = 0.87), as evidenced by the test results showing an increase in students’ understanding. In other words, the Ekorama Pop-Up Book was deemed suitable as a science learning medium for improving conceptual understanding among elementary school students.

Early Marriage in Pagar Alam City is currently still quite high, the Pagar Alam Religious Court only relies on a recap of the number of cases per year to draw conclusions about the early marriage data. This method has limitations in classifying early marriage factors, so the Religious Court has difficulty in monitoring and controlling the occurrence of Early Marriage in Pagar Alam City. The purpose of this research thesis is to produce a classification system for Early Marriage factors using the K-Nearest Neighbor Algorithm to find out what factors influence the occurrence of Early Marriage, the method used in this study is the Cross Industry Standard Process for Data Mining (CRISP-DM) which has 6 stages, namely: Business Understanding, Data Understanding, Data Preparation, Modeling, Evaluation, and Deployment. The testing stage in this study uses Confusion Matrix and BlackBox Testing. The final results of this study indicate that the system can classify Early Marriage factors. The classification model built achieved an Accuracy of 94.12% and a Precise value of 85.71% and a Recall value of 100.00%, while testing using Black Box testing in the form of alpha obtained a feasibility value of 83.2%, so this system is very suitable for use.  

This study aimed to develop a profile video as a promotional and informational medium for State Elementary School 3 Bentangan and to evaluate its feasibility level. The problem was initiated by the school's continuous reliance on print media, such as brochures, and the urgent need for digital content suitable for social media platforms to reach the wider community. To address this, the Research and Development method was employed, utilizing seven stages of development procedures. Data were collected through questionnaires and analyzed using a Likert Scale. The profile video development was validated by media and material experts, and subsequently tested by users. The research results indicated that the developed profile video was highly feasible for use as a promotional and informational medium, based on the validation tests conducted by the media experts, material experts, and users.

As a maritime nation with vast sea territories, Indonesia faces significant challenges in safeguarding its waters, particularly in strategic regions such as the Natuna Sea. This area is vulnerable to various threats, including territorial violations, marine resource theft, and illegal underwater activities. This study aims to formulate a concept for the utilization of Autonomous Underwater Vehicles (AUVs) as an alternative solution to enhance underwater security systems in the region. The method employed is Research and Development (R&D), adopting model development steps and complemented by a Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis to assess the feasibility and effectiveness of AUVs in the context of Indonesian maritime defense. The research findings indicate that the main strength of AUVs lies in their technological capability to effectively detect underwater threats. Although they have weaknesses, such as high operational costs, dependency on imported components, and limitations in battery endurance and sonar capabilities, these factors do not significantly hinder AUV effectiveness. Major opportunities arise from global technological advancements, yet challenges remain due to insufficient government policy support. The threats faced include the risk of sabotage and extreme weather conditions. Therefore, the recommended strategies are to maximize the use of technology, strengthen supporting regulations, and address logistical and financial barriers to realize effective and sustainable AUV operations in the Natuna Sea.

Based on the current existing conditions, Perumnas IV frequently experiences challenges in both the maintenance of its facilities and infrastructure and the perception of its residents. This study aims to: 1) Determine the morphology and typology of the Perumnas IV Padang Bulan area, 2) Determine the level of feasibility of the infrastructure based on SNI 03-1733-2004, and 3) Determine public perception of the infrastructure based on existing conditions and research analysis results. The research method used by the author in this study is a mixed method using an Explanatory Sequential Design approach and a comparative approach. The difference in feasibility percentages between SNI and public perceptions explains that residents have become accustomed to living with the existing facilities and infrastructure, so that the suitability between existing conditions and applicable technical requirements is not a problem in daily life.

Plastic waste, particularly bottle caps, poses a significant environmental challenge due to its slow degradation rate. This study aims to design a functional shoe rack utilizing plastic bottle cap waste to support Sustainable Development Goals (SDG 12: Responsible Consumption and Production). The product development process employed the Quality Function Deployment (QFD) method to translate consumer needs into measurable technical specifications. Concept selection was evaluated using the Pugh Matrix, while financial feasibility was analyzed through the Break Even Point (BEP) approach. The research resulted in an optimal shoe rack design measuring 53x32x37 cm, weighing 1.5 kg, and featuring additional side hangers for socks. The production process involves shredding, molding with resin, cutting, and assembling, with a total duration of 367.03 minutes. Financial analysis indicates that the business reaches the break-even point at a minimum production of 2 units or a total sales value of Rp227,272. This research demonstrates that integrating industrial engineering methods into plastic waste management can produce functional, durable, and economically viable products.

The increasing demand for electricity and high dependence on the utility power grid have driven the adoption of photovoltaic (PV) power generation as an environmentally friendly alternative energy source. This study aims to analyze the techno-economic feasibility of a load-sharing PV power generation system, focusing on technical analysis, operational costs, electricity bill savings, and environmental impacts. The research was conducted using quantitative methods to compare energy from photovoltaic generation and the grid, carbon emission calculations using an emission factor of 0,87 kgCO₂/kWh, and economic evaluation through parameters such as Net Present Value (NPV), Return on Investment (ROI), Cost of Energy (COE), and Payback Period (PP). The research results indicate that the photovoltaic panel generation system enables reducing utility grid energy consumption and reducing carbon emissions by 4,85 tons of CO₂ in 2024, increasing to 8,45 tons of CO₂ in 2025. The economic analysis indicates that the NPV value is not yet optimal; however, the ROI stands at 15%, the COE is Rp. 980.08/kWh, and the Payback Period is 6,56 years. The system is feasible for long-term investment. Overall, the implementation of the photovoltaic power plant demonstrates good potential in supporting carbon emission reduction, increasing the utilization of renewable energy, and reducing dependence on fossil-based energy.

Limited land availability is a major constraint in developing school infrastructure in active urban educational facilities. This study evaluates the classroom development plan at SDN 39 Lubuklinggau from the perspective of a planner, focusing on land limitation, functional needs, safety, constructability, and long-term building performance. A descriptive-evaluative approach was applied through technical observation, document review, alternative assessment, weighted scoring, and risk analysis. The results indicate that horizontal expansion is constrained by limited open space and may reduce internal circulation, student activity areas, and emergency space. Three alternatives were compared: horizontal expansion, building rearrangement, and a two-storey classroom scheme. The two-storey alternative obtained the highest score of 84, compared with 61 for rearrangement and 56 for horizontal expansion. However, its feasibility depends on further soil investigation, structural design, staircase and evacuation safety, utility coordination, construction phasing, and strict site safety control. The study recommends that the planner prioritize detailed site measurement, geotechnical investigation, detailed engineering design, construction safety planning, and post-construction functional evaluation. A vertical classroom strategy can be considered a rational solution for land-constrained schools when supported by accountable technical planning and integrated project control.

This research aims to develop audio-visual learning media based on the Discovery Learning model to improve the ability to write news texts in grade XI students of SMK Mutiara Qolbu Cianjur. The Research and Development (R&D) method is used by referring to the development model which includes the stages of identification of potentials and problems, data collection, product development, product validation, limited scale trials, product revisions, large-scale trials, final revisions, and final products. The research subjects consisted of 103 students in grade XI of SMK Mutiara Qolbu Cianjur which were divided into three classes. Data collection techniques were carried out through observation, interviews, questionnaires, expert validation, and news text writing tests. Data were analyzed using quantitative and qualitative descriptive techniques. The results of the study show that audio-visual learning media based on the Discovery Learning model obtained a very good feasibility level based on the results of the validation of material experts with a percentage of 91% and the validation of media experts of 89%. The results of the trial showed that the learning media received a positive response from students with an average percentage of 87.25%. In addition, the use of Discovery Learning-based audio-visual learning media has proven to be effective in improving students' ability to write news texts. This is shown by the increase in the average score of students from 64.21 in the pre-test to 84.37 in the post-test. The use of audio-visual media also improves students' learning activities, such as active questioning, discussion participation, and the ability to identify news elements.

This research is motivated by the low critical thinking skills of third-grade students in learning Pancasila symbols and the limited use of interesting, interactive learning media in the classroom. The purpose of this study is to develop the Magic Letter Spinwheel learning media, determine its feasibility, and examine the improvement of students’ critical thinking skills after using the media. This study employed a Research and Development (R&D) method with the ADDIE development model, consisting of Analysis, Design, Development, Implementation, and Evaluation stages. The research subjects were third-grade students of SDN Sumber 02, Blitar Regency. Data were collected through observation, interviews, validation questionnaires from media and material experts, as well as pretests and posttests. The data were analyzed descriptively using qualitative and quantitative approaches, including feasibility percentages and the N-Gain test. The development results show that the Magic Letter Spinwheel is an interactive learning medium in the form of a spinning wheel containing Pancasila symbols, questions, and learning activities that encourage students to think critically. This medium is designed with an attractive display and is supported by light features and an automatic rotation button to increase students’ learning interest. Based on expert validation, the media is declared feasible for classroom use. The implementation of the Magic Letter Spinwheel can improve students’ critical thinking skills through active, enjoyable, and student-centered learning activities. Therefore, this media is suitable for use in Pancasila Education learning to support the development of critical thinking skills among third-grade elementary school students.

This study aims to develop and evaluate the feasibility of Teknoran, a website-based digital learning medium developed through the Canva application for the Office Technology subject in Grade X at SMKN 31 Jakarta. The study was motivated by learning activities that were still dominated by lecture methods and limited learning media. Teknoran was designed to facilitate learning through integrated features such as learning materials, assignments, and educational games within a single platform. This research employed the Research and Development (R&D) method using the ADDIE model, which consists of analysis, design, development, implementation, and evaluation stages. Data were collected through observation, needs analysis questionnaires, validation sheets from material and media experts, and student response questionnaires during one-to-one and small group trials. Data were analyzed using descriptive quantitative and qualitative techniques. The results showed that the Teknoran website achieved a feasibility score of 95% from material experts and 93.33% from media experts, both categorized as “Very Feasible.” Student responses also indicated a very high level of acceptance, with an average score of 95.68%. These findings demonstrate that Teknoran is highly feasible as a digital learning medium and can support more interactive, flexible, and independent learning in Office Technology subjects at SMKN 31 Jakarta.

Magelang City faces the challenge of limited land availability, with a total area of only 18.58 km2 and a high population density. Consequently, telecommunications infrastructure development requires a precise strategy. This study aims to analyze the business model and investment feasibility of Pole and Greenfield type telecommunication towers in Magelang City. Using a descriptive quantitative approach, this research processes secondary data from PT Dayamitra Telekomunikasi Indonesia by applying feasibility analysis based on Life Cycle Costing (LCC), Net Present Value (NPV), Internal Rate of Return (IRR), Break-Even Point (BEP), Payback Period (PP), and Benefit-Cost Ratio (BCR). The results indicate significant differences in cost structures; Pole towers proved to be more efficient, requiring an initial capital outlay of only 28.8% of the total capital required for Greenfield towers. Greenfield towers generated an NPV of Rp13.07 billion with an IRR of 20%, while Pole towers generated an NPV of Rp2.46 billion with a higher IRR of 23%. Pole towers have proven to offer a faster return on investment and better operational cost efficiency, making them the most strategic option to support network densification and the implementation of 5G technology in urban areas with spatial constraints like Magelang City.

A feasibility study is a critical stage in the planning of hospital establishment to ensure investment viability, particularly from a financial perspective. This community service program aims to provide reinforcement in the preparation of a feasibility study for the establishment of a Regional Public Hospital (RSUD) in Barukan Village, Tengaran District, Semarang Regency, through financial feasibility analysis conducted by financial experts. The implementation method was carried out through partner needs identification, delivery of financial analysis materials, interactive discussions, and assistance in developing financial models encompassing cash flow projections, discounted payback period (DPP), net present value (NPV), internal rate of return (IRR), and sensitivity analysis, all of which yielded feasible and acceptable results. The outcomes of the activity demonstrated an improvement in partners' understanding of financial feasibility analysis as well as their ability to interpret investment assessment criteria. In addition, the activity yielded an early-stage draft encompassing the financial feasibility aspects, which is intended to guide stakeholders in making informed decisions related to the founding of the Semarang Regency Regional Public Hospital. This activity contributes to strengthening the planning of healthcare facility investment in an effective and sustainable manner.

Feasibility evaluation is a crucial step in port development as it ensures that the project to be implemented provides optimal technical, economic, social, and environmental benefits. This study aims to provide a comprehensive overview of global research trends related to port feasibility evaluation, approaches applied in previous studies, and risks that arise when feasibility aspects are neglected in port development. Using a systematic literature review (SLR) approach, the study analyzes articles published between 2020 and 2025 indexed in Scopus. The results show that there has been increasing global attention to the importance of sustainable ports focused on green technologies and terminal automation. However, many studies still overlook social and environmental risks in feasibility evaluations. The study also found that neglecting feasibility aspects can lead to economic losses, environmental damage, and social dissatisfaction, resulting in project failure. Therefore, this research emphasizes the need for a more integrated feasibility evaluation that includes all technical, economic, social, and environmental dimensions. This study is expected to contribute to the development of a more holistic feasibility evaluation model, especially for developing countries like Indonesia, which still face significant challenges in port modernization and the adoption of green technologies.

This research is motivated by the need for interactive digital learning media to increase interest in learning and understanding of multiplication concepts in elementary school students. This study aims to develop interactive Math Space media based on space math adventure games on multiplication material for third-grade students of Mursyidah Elementary School and assess its feasibility based on aspects of validity, response, and effectiveness. The method used is research and development with a 4D model that includes the stages of definition, design, development, and dissemination. Data were collected through expert validation, teacher and student response questionnaires, and learning outcome tests. The results showed that the Math Space media has a very high level of validity with a percentage of 94% from material experts and 95% from media experts. Meanwhile, positive responses from teachers and students were 94.5% which is included in the very good category. Meanwhile, the effectiveness test produced an N-gain value of 0.87 which is in the very effective category, so this media is proven to be able to significantly improve understanding of multiplication concepts. Based on these results, it can be concluded that the interactive Math Space media is valid, has received positive feedback, and is effective for use in learning mathematics, especially multiplication, and has the potential to be developed for other materials and subjects.

This study aims to develop a PAFE (KPK FPB BOARD) learning medium for KPK and FPB materials for fifth-grade students at SDN 47 Gresik. This research uses the ADDIE (Analyze, Design, Develop, Implement, and Evaluate) model, which focuses on the analysis, design, development, implementation, evaluation, and feasibility testing of the resulting learning media. This media was developed as an interactive tool capable of increasing learning interest, strengthening conceptual understanding, and providing a more enjoyable learning experience. The results indicate that Math Space media meets three main aspects of educational media development: validity, practicality, and effectiveness. In terms of validity, the media expert's assessment obtained a percentage of 95% and a percentage of 80.9%, respectively. Based on the average of the two results, the percentage obtained was 87.9%, making it highly valid. In terms of practicality and effectiveness, the N-gain calculation result of 0.80 is categorized as very effective, thus demonstrating that the use of the media significantly improves understanding of the KPK and FPB concepts. In terms of practicality, student responses reached 92.8%, indicating that this media is highly practical, easy to use, engaging, and supports independent learning. Overall, the PAFE (KPK FPB BOARD) learning media was deemed feasible, practical, and effective for use in mathematics learning, particularly in KPK and FPB. Furthermore, this media is flexible and can be used for both in-class and out-of-class learning.

This study is motivated by the importance of effective credit management in ensuring the sustainability of savings and loan cooperatives, particularly in reducing non-performing loans. Differences in credit management practices across cooperatives represent a relevant issue, especially in balancing formal system-based approaches and trust-based social mechanisms. This study aims to analyze and compare credit management practices in preventing loan defaults at Koperasi Murah Hati and Koperasi Patuh Karya in East Lombok Regency. A qualitative approach with a comparative design was employed. Data were collected through in-depth interviews, observation, and documentation involving cooperative management and borrowing members, and analyzed using data reduction, comparative tabulation, and descriptive-analytical interpretation. The findings reveal that Koperasi Murah Hati applies a trust-based approach characterized by simplified procedures without collateral and field verification, while Koperasi Patuh Karya implements a more formal system through administrative verification, feasibility assessment, and collateral requirements. However, Koperasi Murah Hati shows a lower non-performing loan rate (3.7%) compared to Koperasi Patuh Karya (10.5%). These findings indicate that effective credit management is influenced not only by formal systems but also by social factors such as trust and communication.

The use of local raw materials in Nile tilapia feed formulation needs to be developed to reduce dependence on increasingly expensive conventional feed ingredients. This study aimed to analyze the effect of different formulations of chicken feather meal and moringa leaf meal with turmeric addition as a phytobiotic on the chemical composition of Nile tilapia (Oreochromis niloticus) feed. The study used a completely randomized design with three treatments and three replications. P1 consisted of 55% chicken feather meal, 25% moringa leaf meal, 5% turmeric, 10% corn flour, and 5% starch; P2 consisted of 40% chicken feather meal, 40% moringa leaf meal, 5% turmeric, 10% corn flour, and 5% starch; and P3 consisted of 25% chicken feather meal, 55% moringa leaf meal, 5% turmeric, 10% corn flour, and 5% starch. The parameters analyzed were crude protein, moisture, ash, crude lipid, crude fiber, and carbohydrate. Data were analyzed using analysis of variance followed by the least significant difference test when significant differences occurred. The results showed that P3 produced the highest protein content (22.60%), ash content (6.65%), crude fiber (6.55%), and carbohydrate (8.45%), whereas P2 produced the highest lipid content (6.54%). Based on chemical analysis, P3 was the most prominent formulation for most proximate parameters. However, this formulation cannot be directly concluded as the best feed for fish growth because digestibility, palatability, feed conversion ratio, growth, survival, and health responses were not evaluated. Further biological testing is therefore required to confirm its feasibility for Nile tilapia culture.

This study examines the legal protection of children's rights to inclusive education and its implications for the institutional governance of Early Childhood Education (ECE) in Indonesia. A normative juridical method with a descriptive-qualitative library-based approach is used to evaluate the coherence between macro-level child protection regulations and operational standards for school management. The data are entirely secondary, sourced from statutory laws, ministerial regulations, and pertinent scientific literature. The findings reveal a fundamental tension: the constitutional rights of children with special needs to access non-discriminatory ECE are robustly guaranteed by the 1945 Constitution, Law No. 35/2014 on Child Protection, and Law No. 8/2016 on Persons with Disabilities, yet a wide gap persists at the implementation level. This discrepancy arises because derivative ECE governance instruments including accreditation frameworks and curriculum standards still frame inclusion readiness as a voluntary component rather than a binding obligation. Consequently, ECE institutions encounter systemic barriers in human resource management, physical accessibility, and curricular flexibility. The study underscores the urgency of transitioning ECE management toward a Human Rights-Based Approach (HRBA) and recommends that the Ministry of Basic and Secondary Education reform accreditation instruments by embedding inclusive indicators as mandatory prerequisites for institutional feasibility, thereby aligning administrative governance with the fulfillment of children's constitutional rights.

The management of Uninhabitable Houses (Rumah Tidak Layak Huni/RTLH) in Sikka Regency faces a critical challenge due to the high number of inadequate housing units distributed across both urban and rural areas with complex geographical characteristics. The primary obstacle to effective policy implementation stems from the limited capacity of local government interventions in improving housing quality on a sustainable basis, which is largely caused by poor-quality housing data and the absence of an integrated single-data information system. This policy paper aims to formulate an acceleration strategy for addressing RTLH through the reform of data governance that is accurate, efficient, and accountable. Using Eugene Bardach’s (2012) policy analysis framework to evaluate alternative solutions based on technical feasibility, economic viability, political acceptability, and administrative operability, this study identifies the transformation of intervention mechanisms based on the National Integrated Socio-Economic Data (Data Tunggal Sosial Ekonomi Nasional/DTSEN) as the most appropriate policy option. To ensure long-term sustainability, the paper recommends a Phased Convergence Strategy, whereby data cleansing and matching processes based on DTSEN are implemented at the upstream level and subsequently integrated into the “One Data RTLH Sikka” digital platform in the medium term. This operational strategy is further strengthened through the enactment of a Regent Regulation (Peraturan Bupati) on Data Governance and the Mechanism for Determining Eligible Beneficiaries of Decent Housing Assistance, providing a legally binding framework for policy implementation. By positioning village and urban ward governments as the frontline actors in conducting by-name-by-address (BNBA) field verification, the policy minimizes the risks of inclusion and exclusion errors, eliminates budget overlaps, and optimizes local innovative programs such as the TERKASIH House Assistance Scheme (Terima Kunci Siap Huni – “Receiving the Key to a Ready-to-Occupy House”). The implementation of these recommendations is expected to promote data-driven governance that accelerates the reduction of extreme poverty and enhances the effectiveness of housing assistance programs in Sikka Regency.