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All Journal PROFIT : Jurnal Administrasi Bisnis Jurnal SEPA (Social Economic and Agribusiness Journal) Jurnal SOLMA INTEGRITAS : Jurnal Pengabdian Madaniya Jurnal Manajemen Agribisnis dan Agroindustri Journal of Business Management SEJAGAT : Jurnal Pengabdian Masyarakat The International Journal of Studies in Social Sciences and Humanities (IJOSSH) Prawara Jurnal Pengabdian Masyarakat
Oktanita Jaya Anggraeni
Politeknik Negeri Jember
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Exploring factors influencing customer loyalty at Kemuning Polije Resto, Jember District Kurniawati, Dewi; Anggraeni, Oktanita Jaya; Djamali, Raden Abdoel; Retnowati, Naning; Perlambang CNAWP, Rizal
International Journal of Studies in Social Sciences and Humanities (IJOSSH) Vol. 1 No. 3 (2025): March
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/ijossh.v1i3.5646

Abstract

Customer loyalty is vital for competitiveness in the restaurant industry, especially in local contexts where customer preferences vary. This study investigates the effects of Customer Relationship Management (CRM), service quality, and product quality on customer loyalty at Resto Kemuning Polije, Jember. A quantitative approach was used, collecting survey data from 150 regular customers. Multiple linear regression, along with t-tests and F-tests, assessed the data's validity, reliability, and significance. Results show that CRM, service quality, and product quality positively and significantly influence customer loyalty. Product quality has the strongest impact, followed by service quality and CRM. The model's adjusted R² value of 0.782 indicates that 78.2% of the variation in customer loyalty is explained by these factors. This highlights the importance of maintaining high product standards, delivering excellent service, and employing effective CRM strategies. The study provides insights into the synergy between CRM, service quality, and product quality, offering practical recommendations for restaurant managers. These include prioritising consistent product quality, personalised customer engagement, and staff training. Future research should examine additional factors like pricing and marketing strategies to deepen understanding. This study contributes to the literature on customer loyalty, emphasising the integration of quality and relationship management for sustainable retention.
Effectiveness of the Cobb-Douglas Production Function-Based Input Optimization Model in the Form of a Recommendation System Anggraeni, Oktanita Jaya; Kurniawati, Dewi; Dhamayanthi, Wenny; CNAWP, Rizal Perlambang
International Journal of Studies in Social Sciences and Humanities Vol. 2 No. 3 (2026): March
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/ijossh.v2i3.6692

Abstract

This study designs and implements an input recommendation system for smallholder coffee agribusiness to close productivity and efficiency gaps. The objective is to assess how decision analysis guides farmers toward input combinations aligned with goals, budget constraints, and field risks. The methodology applies decision analysis: candidate input allocations are formulated; evaluation criteria (yield, total cost, risk exposure, ease of implementation) are specified; criterion weights are elicited through structured judgments; scores are normalized and aggregated; and sensitivity analysis tests robustness to weight and price changes. Results show that the recommendation-based alternative consistently outperforms conventional practice on most criteria, raising productivity while lowering cost per unit of output and reducing risk under volatile weather. Stability of rankings across sensitivity tests indicates durable performance across diverse farmer preferences. The findings highlight the need for targeted technical assistance and financing aligned with recommended inputs to support sustained adoption and scalable replication across regions.
Penguatan Kapasitas Produksi dan Manajemen UMKM Pangan berbasis K3 dan Digital Marketing di Desa Suci Kecamatan Panti Anggraeni, Oktanita Jaya; Kurniawati, Dewi; Dhamayanthi, Wenny; Ismail, Andi Muhammad; Rizky, Dian
Jurnal SOLMA Vol. 15 No. 1 (2026)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v15i1.22618

Abstract

Background: Food-based Micro, Small, and Medium Enterprises (MSMEs) in Suci Village, Panti District, hold significant potential for strengthening the rural economy but face constraints in production efficiency, business management, and occupational health and safety (OHS) practices. This community engagement program aimed to enhance technical and managerial capacity through appropriate production technology, financial literacy training, OHS implementation, and digital marketing adoption. Method: The program was conducted over three months with two partner enterprises using a participatory approach and a pre–post evaluation design. Results: Results show a 35% reduction in production time (from 4 hours to 2.6 hours per cycle), a 40% increase in daily output (30 kg to 42 kg), a 60% improvement in financial literacy scores (45 to 72), and an increase in personal protective equipment compliance from 20% to 80%. The number of regular customers also increased from 18 to 26 following the digital promotion. Conclusion: The intervention effectively fostered structured, safer, and data-informed business practices and demonstrates scalability potential for sustainable rural MSME empowerment.
COFFEE FARMING EFFICIENCY USING A COBB–DOUGLAS MODEL RECOMMENDATION SYSTEM Anggraeni, Oktanita Jaya; Kurniawati, Dewi; Dhamayanthi, Wenny; CNAWP, Rizal Perlambang
SEPA: Jurnal Sosial Ekonomi Pertanian dan Agribisnis Vol 23, No 1 (2026): FEBRUARY
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/sepa.v23i1.107089

Abstract

Smallholder coffee farming has a significant contribution to the rural economy, but the efficiency of input use is still a major challenge. This study aims to analyze the influence of production factors on the results of smallholder coffee farming in Suci Village, Panti District, Jember Regency, and to design and implement an input optimization model based on the Cobb-Douglas production function in the form of a simple and practical recommendation system. The novelty of this study lies in the application of economic production functions into a recommendation system that is easy for farmers to operate. The research method used is a quantitative approach, with regression analysis of the Cobb-Douglas model and a spreadsheet-based system implementation test on ten coffee farmers. The results showed that labor, fertilizer, capital, and land had a significant influence on crop yields, with labor as the most dominant factor. However, only labor was used excessively, while other inputs were still underutilized. The implementation of the system resulted in an increase in productivity of 28.5% and economic efficiency of 35.5%, while helping farmers understand the difference between actual and optimal inputs. This study shows that the integration of production functions and practical recommendation systems can be an efficient and applicable solution for decision making in community coffee farming.
Co-Authors Alwan Abdurahman Alwan Abdurrahman Amar Subagiyo Amrulloh, Muhammad Sholahuddin Anrosana, Ida Adha Cahyaning Nur Karimah CNAWP, Rizal Perlambang Dessy Putri Andini Dewi Kurniawati Dewi Kurniawati Dhamayanthi, Wenny Djamali, Raden Abdoel Eko Sulistyono Hudori, Huda Ahmad Ismail, Andi Muhammad Marseva, Amalia Dwi Pribadi, Guntur Putra, Mohammad Edwinsyah Yanuan R. Alamsyah Sutantio Retnowati, Naning Rizky, Dian Subagiyo, Amar Sundari, Sri Uyun Erma Malika Widyatami, Linda Eka Dewi Widyatami, Linda Ekadewi Wijaya, Jemi Cahya Adi