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Journal : IIJSE

Analysis of the Influence of Service and Product Quality on Repurchase Intensity through Customer Satisfaction Mediation of the Nasi Jamblang Mangdul Eating House Abdur Rafiq; Minto Waluyo
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 1 (2025): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i1.5684

Abstract

In an era of increasingly sharp competition, marketers need to improve product quality and service quality to emerge as winners in the competition. Nasi Jamblang is a typical Cirebon culinary dish characterized by the use of teak leaves as a wrapper or serving dish. The name Jamblang itself is the name of an area in Cirebon district. Nasi Jamblang has a variety of side dishes, including fried chili sauce, vegetable tofu, lungs, liver or meat stew, pergedel, potato satay, omelet, fried egg, fish stew, salted fish, tofu and tempeh, blekutak. The quality of a product is related to function, accuracy, and reliability. This research aims to determine the effect of service level and product quality on consumer satisfaction, which then influences repeat purchase interest at Nasi Jamblang Mangdul Restaurant. The research results obtained by researchers for the very good category were 43%, the good category was 40%, the enough 17%, and the less than 0% category.
The Effect of Marketing Mix (4p) on Perceived Value, Trust, Purchase, and Repurchase Decisions Using SEM Tools Sajidah Tiara Ayu Wiranda; Minto Waluyo
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 2 (2025): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i2.6264

Abstract

The rapidly evolving business landscape, particularly in manufacturing and service sectors, demands effective marketing strategies to secure a competitive edge and sustain market presence. This paper focuses on the chemical industry, exemplified by CV Rizqy Anhu Kemala, which faces challenges such as product quality dissatisfaction and increased competition. The study explores the impact of the 4P marketing mix—Product, Price, Promotion, Place—on perceived consumer value, trust, and repurchasing decisions. By collecting questionnaire data and applying Structural Equation Modeling (SEM), the research aims to provide insights. The findings show that the relationship between the independent variable product (X1) has a positive effect on perceived value, price (X2) does not have a positive effect on perceived value, promotion (X3) and location (X4) cannot be proven because these variables are excluded. While the perceived value attachment variable (Y) has a positive and significant effect on trust.
Analysis of Service Quality on the Starbucks Indonesia Application Using E-SERVQUAL and Importance Performance Analysis (IPA) Palmarosa Ardianti Putri Hardhika; Minto Waluyo
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 1 (2025): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i1.6570

Abstract

The advancement of technology has had a significant impact on various aspects of life, especially in terms of people’s dependence on digital services. This trend has driven e-commerce growth, especially in the food and beverage sector, including Starbucks Indonesia which offers a mobile application for enhanced customer experiences. Despites its popularity, the application has received a low rating of 2,4/5 on Google Play Store. This study aims to evaluate the app’s service quality using E-ServQual method, which assesses seven dimensions: efficiency, reliability, fulfillment, privacy, responsiveness, compensation, and contact. Additionally, Importance Performance Analysis is applied to identify critical performance factors requiring improvement. Data is collected through online surveys targeting users who have transacted via the app at least once. The result indicated that, 10 out of 19 service quality attributes exhibited negative gap values, indicating that user perceptions fell short of expectations in key areas such as responsiveness and privacy. These attributes were concentrated in Quadrant I of the IPA diagram. The study calculated an overall service quality level of 88% which, while relatively high, remains below the ideal 100% benchmark. This suggests notable gaps in meeting user needs, particularly when compared to industry standards for similar apps. Highlighting the need to prioritize service quality improvements across these 10 attributes to enhance the App’s service quality and meet user expectations. The study provides actionable recommendations for Starbucks Indonesia to prioritize service quality enhancements based on user feedback and performance analysis.
Analysis of Critical Factors Influencing Project Performance in Construction Projects at CV Adhi Citra Haryo Seto Seto, Adhimas Kunto Haryo; Anwar, Muhadjir; Waluyo, Minto
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 3 (2025): Sharia Economics
Publisher : Universitas KH. Abdul Chalim Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i3.9810

Abstract

Construction projects often face challenges in meeting cost, time, and quality targets. This study aims to analyze: the effect of top management support as a critical factor on project performance, the effect of project team competence as a critical factor on project performance, the effect of green project practices as a critical factor on project performance, and the mediating role of project management effectiveness in these relationships. The research was conducted at CV Adhi Citra Haryo Seto, which managed seven projects during 2023–2025, involving 103 project personnel as respondents. Data were collected using questionnaires and analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) in SmartPLS 4. The findings indicate that project performance at CV Adhi Citra Haryo Seto improves when top management provides consistent support, project teams demonstrate adequate competencies, and green project practices are effectively implemented. These three factors are reinforced through project management effectiveness, where well-prepared planning, structured coordination, and responsive control serve as the bridge that translates leadership support, team capabilities, and green project practices into tangible achievements in cost, time, quality, and project sustainability.