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All Journal JPM17: Jurnal Pengabdian Masyarakat International Journal of Economics (IJEC) Jurnal Penelitian Ekonomi Manajemen dan Bisnis International Journal of Management Research and Economics Jurnal Nirta: Studi Inovasi Dinamika Publik: Jurnal Manajemen dan Administrasi Bisnis Jurnal Ilmiah Ekonomi dan Manajemen Neraca Manajemen, Akuntansi, dan Ekonomi Santri : Jurnal Ekonomi dan Keuangan Islam Jurnal Manajemen Bisnis Era Digital Epaper Bisnis: International Journal Entrepreneurship and Management Management Dynamics: International Journal of Management and Digital Sciences Scripta Economica: Journal of Economics, Management, and Accounting Global Economics: International Journal of Economic, Social and Development Sciences
Ulfi Pristiana
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Religion Arts Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Social Sciences Other

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Analysis Of Cost Of Production PT. Longgeng Prosperous Industry Fausta Ari Barata; Ulfi Pristiana
International Journal of Management Research and Economics Vol. 1 No. 4 (2023): November : International Journal of Management Research and Economics
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/ijmre-itb.v1i4.947

Abstract

Examining the production costs employed by PT. Lasting Prosperous Industry is the aim of this study. The research approach used in this study was qualitative research methodology. The population and sample of the study were selected to represent the societal issues that the PT firm deals with. Langgeng Makmur Industri uses field research, including observation, interviews, and documentation, as well as library research. The results of the investigation show that PT. Langgeng Makmur Industri's production cost approach does not fully utilize current theory; yet, because the company levies a 3% reserve fee, the estimation procedure is nevertheless regarded as normal.
Penerapan Teori Antrian untuk Meningkatkan Efisiensi Waktu bagi Pasien Rawat Jalan BPJS di Rumah Sakit Royal Surabaya Betsy Tiurma Pasaribu; Ulfi Pristiana; Estik Hari Prastiwi
Journal of Economics, Management, and Accounting Vol 1 No 2 (2025): November: Scripta Economica: Journal of Economics, Management, and Accounting
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/0ja52w04

Abstract

This study evaluates the performance of the BPJS outpatient registration queue at Royal Hospital Surabaya. Observations show a patient arrival rate (λ) of 270 patients per hour, while the service rate per counter (μ) is only 10.676 patients per hour with two active servers. This imbalance results in a server utilization rate (ρ) of 12.64, leading to an average waiting time of approximately 75 minutes and an average queue length of about 25 patients, both exceeding the hospital’s service standards. Simulation results indicate that increasing the service rate to 20 patients per hour is the most effective intervention for reducing waiting time and improving system stability. The combination of a higher μ with a reduced arrival rate through online registration further shortens queues and creates a more balanced flow of patients. The study concludes that the primary cause of congestion is the structural mismatch between patient arrival intensity and service capacity. These findings provide a data-driven basis for operational strategies aimed at enhancing the efficiency and service quality of BPJS outpatient registration.  
Analyzing the Operational Performance of Ro-Ro Terminals Using Vessel and Vehicle Queue Time Indicators: A Case Study at Tanjung Perak Port, Surabaya Erwan Khanissuma; Ulfi Pristiana; Esti Hari Prastiwi
Global Economics: International Journal of Economic, Social and Development Sciences Vol. 2 No. 2 (2025): June: Global Economics - International Journal of Economic, Social and Developm
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70062/globaleconomics.v2i2.285

Abstract

The rapid increase in Ro-Ro (Roll-On/Roll-Off) vessel and vehicle traffic at Tanjung Perak Port, Surabaya, has exposed critical inefficiencies in port operations, particularly at key berths such as Jamrud Utara and Jamrud Selatan. These inefficiencies manifest as prolonged queuing times for Ro-Ro vessels and land-based vehicle congestion, leading to delays in cargo handling and increased operational costs. This study aims to evaluate the operational performance of Ro-Ro terminals based on queue time indicators for both Ro-Ro vessels and vehicles. Employing a quantitative descriptive approach, the research integrates the M/M/c queuing model and Fishbone Diagram analysis to identify systemic causes of operational delays and overcapacity. The study reveals that berth utilization rates exceed 75%, indicating saturation, while limited buffer zones and disorganized traffic flow exacerbate vehicle queues. As a case study, the findings offer data-driven insights and practical recommendations, including schedule optimization, dedicated traffic lanes, and infrastructural upgrades to mitigate congestion. The proposed framework not only enhances service efficiency at the port but also contributes to broader logistics performance in Eastern Indonesia. By combining classical queuing theory with root cause analysis, this research introduces a methodological synergy that can be replicated across other Ro-Ro terminals facing similar challenges. The findings underscore the urgent need for integrated port traffic management and infrastructural adaptability in response to growing maritime logistics demands.
PENGARUH KINERJA KEUANGAN, STRUKTUR MODAL, DAN KEBIJAKAN DIVIDEN TERHADAP NILAI PERUSAHAAN DENGAN GOOD CORPORATE GOVERNANCE SEBAGAI MODERASI PADA PERUSAHAAN MANUFAKTUR LQ 45 DI BURSA EFEK INDONESIA Sakim, Muhammad Nur; Ulfi Pristiana
Jurnal Nirta : Inovasi Multidisiplin Vol 5 No 2 (2026): Jurnal Nirta : Studi Inovasi
Publisher : Nirta Learning Centre

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61412/jnsi.v5i2.391

Abstract

Penelitian ini bertujuan untuk menguji dan menganalisis pengaruh Kinerja Keuangan, Struktur Modal, dan Kebijakan Dividen terhadap Nilai Perusahaan, dengan Good Corporate Governance (GCG) sebagai variabel moderasi pada perusahaan manufaktur yang tergabung dalam indeks LQ 45 di Bursa Efek Indonesia periode 2020-2024. Penelitian ini dilatarbelakangi oleh pentingnya nilai perusahaan sebagai indikator kepercayaan investor serta perlunya pemahaman faktor-faktor internal yang dapat meningkatkan nilai perusahaan. Penelitian ini menggunakan pendekatan kuantitatif dengan desain asosiatif. Sampel penelitian terdiri dari perusahaan manufaktur yang secara konsisten masuk dalam indeks LQ 45 selama lima tahun berturut-turut. Data sekunder diperoleh dari laporan keuangan auditan dan laporan tahunan perusahaan. Teknik analisis data meliputi statistik deskriptif, regresi linier berganda, serta Moderated Regression Analysis (MRA) menggunakan SmartPLS untuk menguji pengaruh langsung dan peran moderasi GCG. Hasil penelitian menunjukkan bahwa Kinerja Keuangan dan Kebijakan Dividen berpengaruh signifikan terhadap Nilai Perusahaan, yang berarti profitabilitas yang baik serta pembagian dividen yang konsisten mampu meningkatkan persepsi pasar. Struktur Modal tidak berpengaruh signifikan, menunjukkan bahwa tingkat leverage perusahaan LQ 45 relatif stabil. Selain itu, Good Corporate Governance tidak mampu memoderasi pengaruh kinerja keuangan, struktur modal, maupun kebijakan dividen terhadap nilai perusahaan. Temuan ini menegaskan bahwa profitabilitas dan kebijakan dividen mempunyai peran dominan dalam meningkatkan nilai perusahaan, sedangkan tata kelola tidak memberikan pengaruh moderasi yang signifikan dalam konteks penelitian ini.
An Evaluation of Service Quality at Laskar Buah Bojonegoro Using the Retail Service Quality Scale (RSQS) and Importance-Performance Analysis (IPA) Methods Aghnia Layalia; Ulfi Pristiana; Estik Hari Prastiwi
ePaper Bisnis : International Journal of Entrepreneurship and Management Vol. 2 No. 4 (2025): ePaper Bisnis : International Journal of Entrepreneurship and Management
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/epaperbisnis.v2i4.624

Abstract

Laskar Buah is a modern retail chain specializing in the sale of fresh fruit. At present, the company operates one hundred branches across ten regencies. One of its outlets, Laskar Buah Ngumpakdalem, ranks among the top three branches in terms of transaction volume; however, it has received a considerable number of customer complaints regarding the quality of service provided. This situation has prompted management to conduct a thorough evaluation of the store’s service quality.This study was conducted with the aim of analyzing and evaluating service quality using the Importance–Performance Analysis (IPA) method based on the Retail Service Quality Scale (RSQS). The results of the IPA analysis were subsequently used as a foundation for determining priority areas for service improvement.The findings reveal that four service attributes fall within Quadrant B, indicating that they should be prioritized for immediate improvement. These attributes include the cleanliness of the shopping area, store layout, employee product knowledge, and product quality. Additionally, twelve attributes fall under Quadrant C, where performance should be maintained due to their already strong results. On the other hand, eleven attributes fall into Quadrant A, meaning they are considered lower  priority, while one attribute is located in Quadrant D, suggesting that Laskar Buah Ngumpakdalem is providing excessive performance in that particular aspect.
Analyzing Service Queue Performance at Fuel Stations Using Fishbone Diagram and Queuing Theory: Evidence from Surabaya–Gresik Toll Rest Area Maya Sofiana; Ulfi Pristiana; Estik Hari Prastiwi
ePaper Bisnis : International Journal of Entrepreneurship and Management Vol. 2 No. 4 (2025): ePaper Bisnis : International Journal of Entrepreneurship and Management
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/epaperbisnis.v2i4.629

Abstract

This study aims to determine and analyze service waiting times, identify the root causes of long queues, and develop a strategy to improve service performance at the 5361137-gas station (SPBU) at the Surabaya-Gresik Toll Rest Area. The research method used is a mixed-methods approach with an exploratory sequential design. This study combines quantitative analysis using Queuing Theory to measure system performance (arrival rates and service times) and descriptive qualitative analysis using a Fishbone Diagram. Data were collected through direct observation, interviews, and g-form techniques. The results indicate that the current queuing system performance is in a critical or severe condition, indicated by a server utilization rate of 0.94 to 1.02 during peak hours. The average time spent by vehicles in the system is 14.3 minutes, of which 9.6 minutes (67%) is spent waiting in the queue. Fishbone diagram analysis revealed that the root cause of the main problem lies in the complex interaction of factors: Machine factors (EDC signal failure and pump repair downtime), Human and Method factors (implementation of static shifts and reactive maintenance), and Environmental factors (narrow layouts that hinder large vehicle maneuvers). As a solution, this study formulated a hybrid improvement strategy that includes short-term business process engineering (the use of Floating Staff and lane segregation) and long-term investment in additional pumps to change the queuing model from Single Channel to Dual Channel. This strategy is expected to reduce the utility level to a safe zone below 0.80 with a target waiting time of 3–5 minutes.
Co-Authors Aghnia Layalia Ananda Aulia Rechand Bambang Wiwoho Betsy Tiurma Pasaribu Bima Ardiyanto Wibowo Cholis Hidayati, Cholis Dean Rafi Wijaya Deby Annisah Prasuti Dewi Rahayu Dwi Rijal Giri Prabowo Erwan Khanissuma Esti Hari Prastiwi Estik Hari Prastiwi Estik Hari Prastiwi, Estik Hari Fausta Ari Barata Luthfi Fakhressya Riha Fitria Ardelia Sakim, Muhammad Nur Shafa Nabilah Putri Sofiana, Maya Tetelepta, Jerry