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All Journal Economic Journal of Emerging Markets UNEJ e-Proceeding Admisi dan Bisnis Syntax Literate: Jurnal Ilmiah Indonesia Indonesian Journal of Information System JOBS (Jurnal Of Business Studies) Indicators : Journal of Economic and Business Jurnal Ekuilnomi Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Entrepreneurship and Small Business Research Jurnal Studi Manajemen Bisnis Commercium: Journal of Business and Management International Journal of Education, Vocational and Social Science International Journal of Marketing and Digital Creative (IJMADIC)
Dody - Setyadi, Dody -
Politeknik Negeri Semarang
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Social Sciences Other

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Enhancing Student Satisfaction Through Academic Service Quality: Evidence from a Polytechnic Business Department Dika Vivi Widyanti; Dody setyadi; M Nahar; Sugiyanta; Misbakhul Arrezqi; Fariz Muhammad Abiyyu
Commercium : Journal of Business and Management Vol. 4 No. 3 (2026): August 2026
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/commercium.v4i3.1217

Abstract

This study examines the effect of academic service quality on student satisfaction within the Business Administration Department of Politeknik Negeri Semarang, positioning student satisfaction as a key performance indicator in vocational higher education. This study is novel because it utilizes longitudinal institutional data spanning five semesters to conduct a micro-level SERVQUAL analysis within a vocational polytechnic setting, thereby integrating institution-specific system improvements often overlooked in broader higher education research. Through a quantitative descriptive approach analyzing 5,815 student responses via simple linear regression, the results demonstrate a statistically significant positive relationship (p < 0.001, R² = 0.890) between service quality and satisfaction. While tangible dimensions scored highest, the findings highlight a critical need for strategic improvements in responsiveness and empathy, despite a consistent upward trend in overall satisfaction that validates the effectiveness of continuous institutional efforts. Ultimately, this research provides empirical insights for higher education policymakers to enhance student-centered service delivery by prioritizing responsiveness and personalized administrative interactions within vocational settings.
Influence of Perceived Quality, Reference Groups and Price Fairness on Purchase Decision of Smooly Juice Nurul Aulia Isnaini; Dody Setyadi; Noor Suroija
International Journal of Marketing and Digital Creative Vol. 4 No. 2 (2026): International Journal of Marketing and Digital Creative (IJMADIC)
Publisher : Research Synergy Foundation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31098/ijmadic.v4i2.4149

Abstract

The increasing consumption of healthy beverages has intensified competition among local beverage SMEs, requiring business owners to better understand the factors influencing consumer purchase decisions. However, studies examining the integrated effects of perceived quality, reference groups, and price fairness on purchase decisions in local healthy beverage SMEs, particularly among digitally active young consumers, remain limited. This study adopts a hybrid theoretical framework integrating the Perceived Value Framework, Social Influence Theory, and Equity Theory to explain consumer purchase decisions. The objective of this study is to analyze the effects of perceived quality, reference groups, and price fairness on the purchase decisions of consumers at Smooly Juice Banjarsari Selatan Branch. A quantitative approach was employed using purposive sampling, involving 112 respondents who had previously purchased Smooly Juice products. Data were analyzed using multiple linear regression with IBM SPSS 27. The results indicate that perceived quality, reference groups, and price fairness have positive and significant effects on purchase decisions. Reference groups emerged as the most influential variable, highlighting the importance of social influence, digital recommendations, social media, and electronic word-of-mouth (e-WOM) in shaping consumer behavior. The model explained 28.7% of the variance in purchase decisions (Adjusted R² = 0.287). Theoretically, this study reinforces the Perceived Value Framework, Social Influence Theory, and Equity Theory within the context of local healthy beverage SMEs. Practically, the findings suggest that business owners should improve product quality, maintain price fairness, and optimize digital creative marketing through Instagram, TikTok, online reviews, influencer content, and e-WOM to enhance consumer purchase decisions.
Co-Authors Agus Suratno Aliya Shafina Augusta Sudjarwo Alyssa Chaerunnisa Aprilia DwiRatna Sari Arief - Wikantono Arrezqi, Misbakhul Arridha Satria Rahmanandam Bayu Setyo Nugroho Bayu Setyo Nugroho Bogi - Mulyono, Bogi - Budi - Prasetya Clarissa Putri Kharisma Dika Vivi Widyanti Endang Sulistiyani Endang Sulistyani Erika Devie Fariz Muhammad Abiyyu Hadiahti - Utami, Hadiahti - Hasyim, Fatchun Irin Mirrah Luthfia Iwan Herman Karnowahadi Karnowahadi - Karnowahadi Karnowahadi Karnowahadi Karnowahadi, Karnowahadi Kurniani - Kurniani Luqman Khakim M - Nahar M - Nahar M Nahar M Nahar M. Nahar Maydina Khumairoh CahyaGusti Meita - Salsabilasari Mellasanti - Ayuwardani Milati Puja Misbakhul Arrezqi Muhammad Nahar Nahar, M Nahar, M. Noor Suroija Noor Suroija Nur Rini Nurul Aulia Isnaini Nurwijayanti Rahma - Ulfa Rahma Ulfa Reisi Rizqie Auliya Rifqi Irwandika Safira Umul K Siti Nur Barokah, Siti Nur Siyami, Nely Falahati Sri Marhaeni Salsiyah Sugiyanta Sugiyanta Sugiyanta Sugiyanta Sugiyanta Suryadi Poerbo Suwardi - Suwardi Syamsul Arifin Tavyastuti Tavyastuti Umalasita - Dewi Umar - Farouk Utaminingtyas, Rara Ririn Budi Utaminingtyas, Ririn Budi Vivi Widyanti, Dika Widyanti, Dika Vivi Yolanda Nerissa Arviana Yuli Sudarso Yusmar Ardi Hidayat Yusuf - Sutiyoso Zahra, Diani -