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International Journal of Community Service (IJCS)
Published by PT Inovasi Pratama Internasional
ISSN : -     EISSN : 29617162     DOI : https://doi.org/10.55299/ijcs
Core Subject : Religion, Economy, Humanities, Health, Science, Education, Agriculture, Art, Social, Engineering,
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International Journal of Community Service (IJCS) E-ISSN.2961-7162 is a journal published by the Inovasi Pratama Internasional. Ltd,. International Journal of Community Service (IJCS) accommodates the publication of the results of Community Service activities carried out by lecturers and community service practitioners as a manifestation of the Tri Dharma of Higher Education, Focus & Scope: Art and Humanities, Social, and Science. International Journal of Community Service (IJCS) is an electronic journal that is professionally managed using the Open Journal System, published 2 times a year, in June and December.
Arjuna Subject : Umum - Umum
Articles 15 Documents
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Search results for , issue "Vol. 5 No. 1 (2026): January-June" : 15 Documents clear
Integrating Machine Learning into Portfolio Optimization: A Hybrid ARIMA–GARCH Predictive Model with Genetic Algorithm Peranginangin, Andreas P
International Journal of Community Service (IJCS) Vol. 5 No. 1 (2026): January-June
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijcs.v5i1.1824

Abstract

This article proposes a hybrid quantitative framework that integrates statistical time‑series modeling and evolutionary machine learning for portfolio optimization. The approach combines an ARIMA–GARCH model to jointly estimate conditional mean and volatility of asset returns with a Genetic Algorithm (GA) that searches for optimal portfolio weights on the basis of model‑implied return–risk profiles. The study adopts a secondary‑data quantitative design, synthesising evidence from prior empirical applications of ARIMA–GARCH forecasting and GA‑based portfolio optimization in equity markets, including the S&P500 index and Indonesian LQ45 constituents. Descriptive analysis confirms strong volatility clustering and leptokurtosis in daily stock index returns, justifying the use of GARCH‑type volatility models. Empirical results from the literature show that hybrid ARIMA–GARCH models significantly outperform standalone ARIMA and buy‑and‑hold strategies in terms of forecasting error and risk‑adjusted performance, while GA‑optimized portfolios achieve superior risk–return trade‑offs compared with traditional mean–variance optimization. These findings support the conceptual integration of ARIMA–GARCH forecasts and GA‑based allocation as a promising direction for portfolio construction, particularly in emerging markets such as Indonesia. The article concludes with implications for portfolio managers, regulators, and higher‑education curricula in quantitative finance and data‑driven investment.
Empowering Adolescent Health Cadres through Peer Counselor Training to Prevent Early Marriage in Village X Fatimah, Fatimah; Siregar, Rahma Juliani; Harahap, Maryam Latifah
International Journal of Community Service (IJCS) Vol. 5 No. 1 (2026): January-June
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijcs.v5i1.1826

Abstract

Early marriage remains a critical public health and social problem in many Indonesian rural areas and is closely related to low reproductive health literacy, gender norms, and limited access to youth‑friendly information and services. Peer‑based approaches are increasingly recognized as effective in changing adolescents’ knowledge and attitudes regarding early marriage and reproductive health. This quantitative study aimed to analyze the effect of peer counselor training on the knowledge and attitudes of adolescent health cadres toward early marriage prevention in Village X. A quasi‑experimental one‑group pretest–posttest design was applied to 30 adolescent health cadres selected through purposive sampling. The intervention consisted of a structured peer counselor training program on reproductive health, risks of early marriage, communication skills, and basic counseling techniques. Knowledge and attitudes were measured using validated questionnaires before and four weeks after the training. Data were analyzed using paired t‑test or Wilcoxon test according to distribution assumptions. The results showed a statistically significant increase in mean knowledge and attitude scores after training, indicating improved cognitive and affective readiness of adolescent cadres to act as peer counselors. These findings support strengthening community‑based adolescent health promotion through systematic empowerment of peer counselors to prevent early marriage in rural settings.
Literacy in Digital Reproductive Health: Analysis of Sexual Violence Prevention Among Adolescents in Padangsidempuan City, Indonesia Suryani, Elvi
International Journal of Community Service (IJCS) Vol. 5 No. 1 (2026): January-June
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijcs.v5i1.1827

Abstract

Adolescents in Indonesia increasingly navigate a digitized environment where online and offline risks to sexual and reproductive health intersect. Padangsidimpuan City in North Sumatra has a predominantly young population, yet little evidence exists on how digital reproductive health literacy can be leveraged to prevent sexual violence. This qualitative study adopts a narrative review and document-based content analysis to synthesize empirical and conceptual literature on digital health literacy, adolescent reproductive health education, and sexual and technology-facilitated gender-based violence in Indonesia, with a specific focus on implications for Padangsidimpuan. Data sources include peer‑reviewed journals, government statistics, and policy and NGO reports. The analysis identifies four major themes: (1) rapid digitalization and youth demographics as a double-edged sword, (2) persistent gaps in reproductive health literacy and taboo-laden communication, (3) the high and evolving burden of sexual and online gender-based violence among adolescents, and (4) digital reproductive health literacy as a promising but underutilized strategy for primary prevention. A multi-level framework is proposed, emphasizing the roles of schools, families, health services—especially midwives—and local government in strengthening adolescents’ critical, safe, and rights-based engagement with digital reproductive health information. The findings inform context-sensitive strategies for Padangsidimpuan and highlight priorities for future local qualitative research
The Implementation of Financial Management and Digital Marketing for Urban Village MSMEs in Enhancing Business Competitiveness Dahlan, Dede; Manippi, Wahyu Anugrah; Subandi, Iwan; Andi, Andi; Jaya, Rahmat
International Journal of Community Service (IJCS) Vol. 5 No. 1 (2026): January-June
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijcs.v5i1.1828

Abstract

Aprilianti, D., Agustian, A., & Narimawati, U. (2025). Adoption and Use of Digital Marketing Tools Among Food and Beverage MSMEs in Gen Z. Jurnal Ilmiah Manajemen Kesatuan, 13(4), 2889–2908. https://doi.org/10.37641/jimkes.v13i4.3687 Creswell, J. W. (2021). Research design: Qualitative, quantitative, and mixed methods approaches (5th ed.). SAGE Publications. Fujianti, L., Masri, I., Kasim, E., & Aditia, D. P. (2025). INTRODUCTION TO WARUNG APPLICATION-BASED DIGITAL ACCOUNTING FOR IMPROVING THE EFFICIENCY OF FINANCIAL RECORD-KEEPING OF MSMES IN CURUG BOGOR VILLAGE. Abdi Dosen : Jurnal Pengabdian Pada Masyarakat, 9(3), 1113–1125. https://doi.org/10.32832/abdidos.v9i3.2893 Hadi, D. P., Sumastuti, E., Indriasari, I., & Fathurachman, C. (2025). Strategies for improving ASEAN MSME competitiveness by applying digital marketing, business management quality and crowdfunding by applying product innovation and operational efficiency as intervening variables. Edelweiss Applied Science and Technology, 9(6), 2870–2885. https://doi.org/10.55214/25768484.v9i6.8500 Itua, A. T., AKOGWU, D. P. R., & Senkoya, D. M. A. (2025). The Role of Cultural Sensitivity in Digital Marketing Effectiveness and Platform Engagement. International Journal of Research and Scientific Innovation, 12(10), 2740–2747. https://doi.org/10.51244/IJRSI.2025.1210000234 Muhammad Mubushar, Fahmeed Idrees, & Muhammad Ali Mufti. (2025). Innovation Capability as a Mediator of Financial Resources, Digital Marketing Capability, Entrepreneurial Orientation, and Start-Up Growth. Contemporary Issues in Social Sciences and Management Practices, 4(3), 143–154. https://doi.org/10.61503/cissmp.v4i3.337 Murari, D. K. (2025). A Study on Adoption of Digital Technologies by the MSMEs. INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 09(07), 1–9. https://doi.org/10.55041/IJSREM51165 Nugraha, F. A., Ahmatang, A., Ali, H., Lukiyanto, K., & Tawil, M. R. (2025). Influence Of External and Internal Factors On The Performance Of MSMEs In Indonesia. Maneggio, 2(1), 237–245. https://doi.org/10.62872/5wtkae52 Sugiyono. (2019). Metode penelitian pendidikan: Pendekatan kuantitatif, kualitatif, dan R&D. Alfabeta. Suvittawat, A. (2026). Drivers of Farmers’ Adoption Intention for Soil Nutrient Analyzers: Roles of Awareness, Perceived Usefulness, and Ease of Use. Agriculture, 16(3), 390. https://doi.org/10.3390/agriculture16030390
A Development Model Of Promotional Strategy, Brand Equity, And Product Innovation Influencing Purchase Intention: A Case Study Of Nata De Coco MSMEs In North Minahasa Regency, Indonesia Mandey, Silvya Lefina; Lengkong, Victor Paskah Kalawat; Kandou, Jenny Emma Agustin
International Journal of Community Service (IJCS) Vol. 5 No. 1 (2026): January-June
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijcs.v5i1.1829

Abstract

Research on promotional strategies, brand equity, product innovation, and purchase intention in marketing is a crucial area of study. This research aims to enhance marketing strategies, particularly for MSMEs producing nata de coco in North Minahasa Regency, in supporting and improving their business processes. The study utilizes a sample drawn from the population. Given the large size of the population and the impracticality of studying the entire group, a sample size of 100 respondents was selected, meeting the minimum requirements for sampling. This research employs a causal associative approach to analyze the relationships among variables, both simultaneously and partially. The variables examined in this study include: promotional strategy (X1), measured through indicators such as promotional messages, promotional media, and timing (Kotler & Keller, 2016); brand equity (X2), measured by brand awareness, perceived quality, brand association, and brand loyalty; and product innovation (X3), with indicators including transactional interest, referential interest, preferential interest, and exploratory interest. The results of the study indicate that promotional strategies, brand equity, and product innovation have both partial and simultaneous (combined) effects on the purchase intention of nata de coco MSME products in North Minahasa Regency.

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