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Purbanuara Parlindungan Sitorus
Institut Transportasi Dan Logistik Trisakti
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Analisis Pengendalian Persediaan Raw Material Untuk Meningkatkan Efisiensi Produksi Hand Stand Mixer Pada Pt Blue Gas Indonesia Dengan Metode Material Requirement Planning (MRP) Puspita, Sesaria Mardhiani Rachma; Sitorus, Purbanuara Parlindungan; Theresia, Noviana Marianti
Jurnal Sistem Transportasi & Logistik Vol. 3 No. 3 (2024): April
Publisher : Institut Transportasi dan Logistik Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54324/jstl.v3i3.2441

Abstract

PT. Blue Gas Indonesia is a company engaged in sales, distribution, gas refiling and assembling. This company also has a household equipment production and assembly business unit under the Vienta trademark and markets Blue Gas and Vienta kitchen equipment products such as Hand Stand Mixers. This company has a problem, namely PT. Blue Gas Indonesia still uses a manual system to plan Raw materials for making handstand mixers. This can cause problems, such as frequent calculation errors when Raw material stock is too small, resulting in the production process being hampered. Therefore, this research aims to find out the optimal quantity of Raw material needed and to know when to place a new order using the MRP Method, Lot For Lot-for-lot technique, Economic Order Quantity, and Period Order Quantity. The results of the research produced From the results of analysis using the Material Requirement Planning method by calculating Lot Sizing using three techniques, namely Lot For Lot, Economic Order Quantity, and Periodic Order Quantity on Raw materials for Hand Stand Mixer products, it can be concluded that the lotting or lot-sizing technique costs money. The minimum inventory for almost all Raw materials is the Lot For Lot technique with a total inventory cost of IDR 4.422.348.978,59.
The Mediating Role of Online Tracking in the Relationship Between Delivery Timeliness and Customer Satisfaction in E-Commerce Sirait, David Pandapotan; Sitorus, Marthaleina Ruminda; Lermatan, Esterlinus Edwin; Pratiwi, Sekar Widyastuti; Parlindungan, Purbanuara
Dinasti International Journal of Management Science Vol. 7 No. 3 (2026): Dinasti International Journal of Management Science (January - February 2026)
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijms.v7i3.6239

Abstract

This study aims to analyze the determinants of customer satisfaction in the e-commerce landscape by examining the roles of timeliness of delivery and online tracking. In a competitive market, customer satisfaction has become a crucial indicator of success, where logistics and supply chain management play a central role. This research proposes and tests a mediation model where online tracking is hypothesized to mediate the relationship between timeliness of delivery and customer satisfaction for Shopee Indonesia users. Using a quantitative approach, data were collected through a survey of 150 Shopee consumers in Indonesia and analyzed using Partial Least Squares - Structural Equation Modeling (PLS-SEM). The results confirm that all four proposed hypotheses were accepted. The findings indicate a significant positive influence of timeliness of delivery on both online tracking and customer satisfaction. Online tracking also has a strong positive effect on customer satisfaction. Crucially, the study validates that online tracking acts as a significant mediator in the relationship between timeliness of delivery and customer satisfaction. These findings imply that e-commerce platforms must prioritize both the reliability of delivery and the transparency of the tracking process to enhance overall customer satisfaction.
Behaviour and Satisfaction Effects on User Loyalty within e-Procurement of National Oil Firms Purbanuara Parlindungan; Lim Sanny; Sita Aniisah Sholihah; Nofrisel Nofrisel; Zaroni Zaroni
Studi Akuntansi, Keuangan, dan Manajemen Vol 5 No 2 (2025): Oktober
Publisher : Penerbit Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/sakman.v5i2.5524

Abstract

Purpose: This study aims to analyze the effects of Application Ease of Use, Digital Service Quality, and Digital Information Quality on User Behavior, User Satisfaction, and User Loyalty in National Upstream Oil and Gas Companies. It also examines the mediating roles of User Behavior and User Satisfaction in influencing loyalty. Research Methodology: A quantitative approach was used with the SmartPLS 4 analysis tool to analyze the data. Data were collected from 296 respondents across 15 upstream oil and gas companies in Indonesia, selected through purposive sampling based on Slovin’s formula. The analysis employed the Structural Equation Modeling (SEM-PLS) technique to test the direct and indirect effects of the study variables. Results: The findings revealed that Ease of Use and Digital Service Quality significantly influenced both user behavior and satisfaction. Digital Information Quality does not significantly affect User Behavior but has a strong impact on User Satisfaction. Furthermore, User Behavior and User Satisfaction significantly enhance User Loyalty, confirming their mediating roles. Conclusions: Ease of Use and Service Quality are critical determinants of user engagement and loyalty, whereas Digital Information Quality primarily strengthens satisfaction. Limitations: This study focused only on upstream oil and gas companies in Indonesia and used cross-sectional self-reported data, which may limit causal interpretation. Contribution: This study enriches digital loyalty theory by highlighting how behavioral and satisfaction factors mediate the impact of digital quality dimensions on user loyalty in industrial digital systems.
User Satisfaction Mediates Ease of Use and Loyalty in Hulu Migas E-Procurement Purbanuara Parlindungan; Lim Sanny; Zaroni Zaroni; Sita Anisah Sholiha
Studi Akuntansi, Keuangan, dan Manajemen Vol 5 No 2 (2025): Oktober
Publisher : Penerbit Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/sakman.v5i2.5632

Abstract

Purpose: This study investigates how Ease of Use in an e?procurement system impacts User Loyalty within a national upstream oil and gas company, with User Satisfaction serving as a mediating factor. The aim is to clarify the indirect effect of system usability on loyalty by evaluating the mediation pathway through satisfaction Methodology: Employing a quantitative approach, data were collected from 296 e?procurement users across 15 national hulu migas companies using structured surveys. Responses were analyzed using Structural Equation Modeling (SEM) via SmartPLS 4 Results: The study found that ease of use significantly impacts user satisfaction (? = 0.779, p < .000) and user loyalty (? = 0.293, p < .000), with user satisfaction mediating the relationship between ease of use and loyalty (indirect effect = 0.537, p = .000). These results align with recent research indicating that ease of use enhances user satisfaction and loyalty, with satisfaction serving as a mediator in this relationship. Conclusions: Ease of use significantly effect on user satisfaction and loyalty. User satisfaction has positive and significant mediating ease of use and loyalty. Limitations: The study does not account for variations across different platforms or consider deeper system factors such as security, technical complexity, and usability challenges—issues highlighted in the literature as significant barriers to e-procurement adoption Contribution: This Research contributes to both management practice and academic understanding by showing that improving system usability can enhance loyalty through user satisfaction—offering a clear direction for strategic enhancements in e?procurement platforms.
Enhancing Passenger Satisfaction Through Service Quality: The Strategic Role of Baggage Handling Marthaleina Ruminda; Purbanuara Parlindungan; Nurul Aulia Salsa Bila; Rayhan Adzikra Fachrurozy
Journal of Social Research Vol. 4 No. 10 (2025): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v4i9.2772

Abstract

Intense competition within the low-cost carrier (LCC) industry has shifted the strategic focus from price superiority towards enhancing service quality and passenger satisfaction. This study aims to analyze the strategic role of the operational process of baggage handling in shaping passenger satisfaction by examining the mediating role of Service Quality. Employing a quantitative approach with the Partial Least Squares Structural Equation Modeling (PLS-SEM) method, data were collected via a questionnaire from 100 respondents, who were predominantly young passengers (under 25 years old) and university students. The findings indicate that Baggage Handling has a direct, positive, and significant influence on both Service Quality and Customer Satisfaction. Furthermore, Service Quality is also proven to have a positive and significant effect on Customer Satisfaction. The most critical finding is the confirmation of the partial mediating role of Service Quality in the relationship between Baggage Handling and Customer Satisfaction. This result implies that baggage handling possesses a dual role: as a component in shaping service quality perceptions and as a direct driver of satisfaction. For LCC managers, this finding underscores the importance of managing baggage handling as a strategic service touchpoint, with practical implications including investment in automated baggage systems, real-time tracking technology, and staff training programs to effectively enhance passenger satisfaction and competitive advantage.
Analysis of Timeliness and Price on Customer Satisfaction Goride Electric Purbanuara Parlindungan; Tedy Herdian; Mochammad Affan El Hanif; Miftah Hafid Adhitama
Jurnal Siber Multi Disiplin Vol. 3 No. 4 (2026): Jurnal Siber Multi Disiplin (Januari - Maret 2026)
Publisher : Siber Nusantara Research & Yayasan Sinergi Inovasi Bersama (SIBER)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/jsmd.v3i4.824

Abstract

This study analyzes the impact of timeliness and price on customer satisfaction in the context of Gojek's innovative service, Goride Electric. This research uses quantitative methods with research instruments in the form of questionnaires. Data analysis was performed using SmartPLS version 4.0. Based on the results of this study, it shows that timeliness and pricing have a positive and significant impact on customer satisfaction, thereby increasing Gojek's competitive advantage in the online transportation service market. This research contributes to a better understanding of the dynamics of customer satisfaction in the context of innovative electric vehicle-based vehicle booking services, so that it can help Gojek improve its services and maintain customer loyalty.
Website Quality and Personal Branding: Drivers of Satisfaction and Purchase Decision Novia Indah Lestari; Nunung Ayu Sofiati; Purbanuara Parlindungan; Harry Purwoko; Ida Ayu Trisna Wijayanthi
Jurnal Ilmiah Manajemen Kesatuan Vol. 13 No. 6 (2025): JIMKES Edisi November 2025
Publisher : LPPM Institut Bisnis dan Informatika Kesatuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37641/jimkes.v13i6.4193

Abstract

Digital transformation in commerce has shifted consumer behavior, making website quality and personal branding central factors in shaping customer satisfaction and purchase decisions. While prior studies often analyze these elements separately, limited research has integrated them into a unified framework to explain how digital experiences influence consumer outcomes. This study aims to examine the effects of website quality and personal branding on purchase decisions, with customer satisfaction as a mediating variable. The research adopts a quantitative approach using Partial Least Squares Structural Equation Modeling (PLS-SEM). Data were collected through an online survey of 160 respondents who had prior experience with e-commerce platforms, and the model was tested using SmartPLS with bootstrapping techniques. Findings reveal that website quality positively affects both customer satisfaction and purchase decision, while personal branding significantly influences satisfaction but does not directly impact purchase decision. Moreover, customer satisfaction strongly mediates the relationship between website quality, personal branding, and purchase decision. The study highlights the dual importance of technical excellence and authentic personal branding in fostering satisfaction and driving consumer behavior. The results provide theoretical insights for digital commerce research and practical guidance for businesses to enhance consumer trust, engagement, and purchase outcomes.
Designing A Reverse Logistics Monitoring System for Logistics Products at PT XYZ Purbanuara Parlindungan Sitorus; Sita Anlisah Sholihah; Havid Lucky Fadzrin
Journal Research of Social Science, Economics, and Management Vol. 5 No. 2 (2025): Journal Research of Social Science, Economics, and Management
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jrssem.v5i2.1092

Abstract

The process of product returns from suppliers is very urgent to reduce large company losses due to products returned from suppliers experiencing many problems. This study aims to measure the supply chain performance in each backflow supply chain of telecommunication industry products in Indonesia. Analysis was conducted using the SCOR model and determination of value weighting using AHP. The results of the analysis with 10 indicators for the delivery and return process show that the total value of PT. XYZ's company performance is still far from the target. This indicator must be corrected because there is a need for an increase in company performance, namely the Delivery and Return indicators, one of which occurs in returns when the driver brings damaged goods taken from the supplier and repackages, or commonly called repackaging, the damaged product in the PT. XYZ warehouse. There is a shortage[A1] [A2] or lagging of some of these products. The results of the analysis also show that PT. XYZ has the lowest performance value on both criteria, namely delivery and return, where each of these values can be categorized as "poor" or can also be called bad. With this finding, what must be done to improve performance is the addition of Quality Control management so that the product you want to return or return for the repair process can be managed such that there is no shortage of product returns, does not take a long time, and does not cost much more money during the delivery process.
Understanding Digital Consumer Behaviour: Consumer Trust Mediating e-WOM Credibility, Responsiveness, Decisions, and Satisfaction Ahmad Sopyan; Teguh Maianto; Marthaleina Ruminda; Kamsariaty Kamsariaty; Purbanuara Parlindungan
Reviu Akuntansi, Manajemen, dan Bisnis Vol 6 No 2 (2026): Juni
Publisher : Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/rambis.v6i2.7293

Abstract

Purpose: This study examines the effects of e-WOM credibility and digital responsiveness on transaction decisions and customer satisfaction, with consumer trust as a mediating mechanism in e-commerce.Research Methodology: A quantitative, explanatory, cross-sectional survey was conducted using purposive sampling of 210 e-commerce users. Data were collected through a five-point Likert questionnaire and analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) with SmartPLS 4.Results: Consumer trust significantly influences customer satisfaction (β = 0.462) and transaction decisions (β = 0.418). E-WOM credibility significantly affects consumer trust (β = 0.466) and transaction decisions (β = 0.257), but not customer satisfaction directly. Digital responsiveness significantly improves customer satisfaction (β = 0.386), but does not significantly affect trust or transaction decisions. Consumer trust significantly mediates the effects of e-WOM credibility on customer satisfaction (β = 0.215) and transaction decisions (β = 0.195).Conclusion: Trust is a central mechanism in digital consumer behavior, while responsiveness primarily functions as a satisfaction-enhancing factor.Limitation: The cross-sectional design, self-reported data, selected variables, and limited generalizability constrain the findings.Contribution: The study extends the S–O–R perspective by demonstrating distinct pathways through which informational and service-related stimuli influence e-commerce outcomes.
Evaluasi Kinerja Armada Distribusi BBM Menggunakan Fuzzy Analytic Hierarchy Process dan Root Cause Analysis Purbanuara Parlindungan; Dinar Dewi Kania; Siska Amonalisa Silalahi; Sesaria Mardhiani Rachma Puspita; Farraz Aulia Shaliha
Annals of Human Resource Management Research Vol. 6 No. 3 (2026): September
Publisher : Goodwood Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/ahrmr.v6.n3.p387-398.2026

Abstract

Purpose: This study aims to evaluate the performance of a fuel distribution fleet and formulate risk mitigation strategies for outstanding (failed cargo) cases at Integrated Terminal Jakarta, PT Pertamina Patra Niaga. Methodology: A hybrid approach combining the Fuzzy Analytical Hierarchy Process (F-AHP) and Root Cause Analysis (RCA) was employed. Primary data were collected through pairwise comparison questionnaires from five purposively selected fleet management experts, and were supported by historical operational data. Results: The F-AHP analysis revealed consistency as the most critical criterion (weight 0.245), followed by speed (0.222), distribution (0.203), cost (0.180), and schedule (0.149). For the subcriteria, conformity emerged as the dominant indicator, notably scoring 0.417 for consistency. The assessment showed high logical validity, with a Consistency Ratio of 0.00176. Conclusions: Outstanding cases are primarily driven by workforce inconsistencies and procedural noncompliance rather than mechanical failures. Mitigation should focus on enhancing crew competence, implementing preventive maintenance, and optimizing route coordination. Limitations: The scope is confined to the Integrated Terminal Jakarta and relies on one semester's data, which may not capture annual seasonal dynamics across other regional logistics hubs. Additionally, the study relies on a limited number of expert respondents (n=5) for the pairwise comparisons, which may restrict the broader generalizability of the weighting results Contributions: This study provides an empirical framework for logistics managers in the energy sector to minimize operational disruptions, improve workforce compliance, and build supply chain resilience.
Co-Authors Ahmad Sopyan Antonius, Sulistiyono Aradena, Athallah Aqil Ghani Halim Ardhya Ekawati, Dian Azizi, Dimas Akbar Bijaksana, Gena Chamsudi, Danie Hayam Mada David Pandopotan Sirait Dinar Dewi Kania Dinar Dewi Kania Esterlinus Edwin Lermatan Fadillah, Ridho Rizky Farraz Aulia Shaliha Febriansyah, Rizky Firmansyah, Iqbal Havid Lucky Fadzrin Ida Ayu Trisna Wijayanthi Irenita, Novembria Jonathan Jonathan Kamsariaty Kamsariaty Kharisma, Alvian Farisqi Dwi Larasati, Kinanthi Lim Sanny lim Sanny, lim Marthaleina Ruminda Miftah Hafid Adhitama Mochammad Affan El Hanif Nofrisel Nofrisel Novia Indah Lestari Nunung Ayu Sofiati (Efi) Nurul Aulia Salsa Bila Olghatra Putra Yohanes Poncotoyo, Wahyu Pratiwi, Sekar Widyastuti Purnamasari, Hylda Kusuma Purwoko, Harry Puspita, Sesaria Mardhiani Rachma Rahfi, Muhamad Sauqi Rayhan Adzikra Fachrurozy Sesaria Mardhiani Rachma Puspita Sholiha, Sita Anisah Siska Amonalisa Silalahi Sita Aniisah Sholihah Sita Anisah Sholiha Sita Anlisah Sholihah Situmorang, Johan Kiara Sri Handayani Sri Rahardjo Suryobuwono, Abdullah Ade Tantry, Francis Tedy Herdian Teguh Maianto Theresia, Noviana Marianti Yana Tatiana, Yana Yulianti Keke Zaroni , Zaroni Zaroni Zaroni