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All Journal Saintia Matematika SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal Sains Matematika dan Statistika Edumatsains Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal Masharif al-Syariah: Jurnal Ekonomi dan Perbankan Syariah Desimal: Jurnal Matematika Zero : Jurnal Sains, Matematika, dan Terapan International Journal of Supply Chain Management JOURNAL OF SCIENCE AND SOCIAL RESEARCH MABIS: Manajemen dan Bisnis Jurnal Manajemen dan Bisnis MES: Journal of Mathematics Education and Science Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Jurnal Ilmiah Manajemen Kesatuan Jurnal Ilmiah Akuntansi Kesatuan Jurnal Penelitian Ekonomi Akuntansi (JENSI) ASSET: Jurnal Manajemen dan Bisnis Jurnal Suluh Pendidikan Journal of Research in Mathematics Trends and Technology Jurnal Ekonomi Bisnis, Manajemen dan Akuntansi (JEBMA) FARABI: Jurnal Matematika dan Pendidikan Matematika Jurnal Manajemen dan Bisnis International Journal of Educational Review, Law And Social Sciences (IJERLAS) International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Jurnal Akutansi Manajemen Ekonomi Kewirausahaan (JAMEK) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) MATHunesa: Jurnal Ilmiah Matematika Journal of Mathematics Technology and Education Asian Journal of Management Analytics ARZUSIN: Jurnal Manajemen dan Pendidikan Dasar Return : Study of Management, Economic and Bussines Multiverse: Open Multidisciplinary Journal International Conference on Health Science, Green Economics, Educational Review and Technology (IHERT) Innovative: Journal Of Social Science Research Benefit : Journal of Bussiness, Economics, and Finance Enrichment: Journal of Multidisciplinary Research and Development Neraca: Jurnal Ekonomi, Manajemen dan Akuntansi Jurnal Arjuna : Publikasi Ilmu Pendidikan, Bahasa dan Matematika Journal of Business Management Neraca Manajemen, Akuntansi, dan Ekonomi Cendikia Pendidikan Journal Business Administration (JBA): Entrepreneurship and Creative Indutry Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa International Journal of Economics, Accounting, and Management Management of Education: Jurnal Manajemen Pendidikan Islam Harmoni Economics: International Journal of Economics and Accounting
Parapat Gultom
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Spatial Regression Analysis of Environmental and Structural Factors Influencing Shophouse Values in Makassar City, Indonesia Najang, Abdullah; Gultom, Parapat; Octavianus, Handy
Asian Journal of Management Analytics Vol. 3 No. 4 (2024): October 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ajma.v3i4.11866

Abstract

This study investigates the factors that influence shophouse values in Makassar City, Indonesia, using a spatial regression model. The research addresses the lack of prior studies that consider spatial dependencies in property value assessments. By analysing data from 101 shophouses across four distinct city strata, factors such as building area, certificate type, and road width were found to significantly impact property values. Additionally, spatial relationships between neighboring properties were observed, indicating a 0.3 positive correlation. The study employed Structural Equation Modeling (SEM) with the R Project for Statistical Computing. The results provide insights into the spatial dynamics of urban property values, which are valuable for urban planners, investors, and policymakers aiming to optimize real estate development in rapidly growing urban centres.
Multi-objective vehicle routing problem with time windows via genetic algorithm Ketaren, Dahlia Rizky; Parapat Gultom; Mahyuddin K.M. Nasution
Desimal: Jurnal Matematika Vol. 8 No. 2 (2025): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/630swz39

Abstract

Efficient waste transportation requires route planning that considers time constraints, vehicle capacity, and road conditions. This study develops a Multi-Objective Vehicle Routing Problem with Time Windows model to optimize waste collection routes in Batu Bara Regency. The model simultaneously optimizes three objective functions: minimizing total travel distance, travel time, and risk based on road conditions. The solution is obtained using a Genetic Algorithm, with field data serving as model input. Simulation results show that the proposed model produces more efficient and realistic routes compared to conventional methods. The model effectively accommodates vehicle capacity constraints and customer service time windows. With the Genetic Algorithm, the solutions are not only operationally effective but also adaptable to the complex road network in the study area. These results can inform local government and waste management agencies in developing more adaptive and data-driven routing strategies, leading to cost savings, improved service efficiency, and reduced environmental impact. Moreover, the model can be extended or customized for other public logistics problems, such as food distribution or emergency response in semi-urban areas with similar infrastructure constraints. Future research can enhance this model by incorporating dynamic traffic data, multi-depot scenarios, or integrating sustainability metrics such as fuel consumption and emissions.
PENGARUH SISTEM INFORMASI MANAJEMEN DAN LINGKUNGAN KERJA TERHADAP KINERJA TENAGA KEPENDIDIKAN PADA UNIVERSITAS KATOLIK SANTO THOMAS Situmorang, Theresa Sisilia; Gultom, Parapat
Jurnal Manajemen dan Bisnis Volume 24 No. 1 Tahun 2024
Publisher : UNIKA Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study entitled "The Influence of Management Information System and Work Environment on Educational Staff Performance at University of Saint Thomas Sumatera Utara". The purpose of this study was to determine the effect of Management Information System and Work Environment on Educational Staff Performance. This research method is descriptive research, hypothesis testing using multiple regression analysis. Data processing is done using SPSS. The population in this study were 78 educational staffs. In this study, sampling using the slovin formula, the number of samples in this study was 42 people. Based on the F test, it is known that the influence of the management information system and work environment on the performance seducational staff, together has a significant effect on the performance of staff. Based on the t test, it is known that the management information system has a positive and significant effecton the performance of educational staff and work environment has a positive and significant effecton the performance of educational staff. Based on the results of multiple linear regression, it is known that the variable that has the greatest influence on the performance of educational staff University Saint Thomas, Sumatera Utara is the work environment, which is 16,8 percent.
THE INFLUENCE OF PRICE AND SHOPPING CONVENIENCE ON ONLINE PURCHASE DECISIONS OF STUDENTS OF THE FACULTY OF COMPUTER SCIENCE, SANTO THOMAS CATHOLIC UNIVERSITY ON THE E-COMMERCE SHOPPE Bangun, Yohana; Gultom, Parapat
Jurnal Manajemen dan Bisnis Volume 24 No. 1 Tahun 2024
Publisher : UNIKA Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In the current era of globalization, the internet is increasingly sophisticated and continues to develop, especially in the field of marketing, both in national and international markets. This competition is coupled with selectiveness. Companies must be able to communicate their products to consumers in selecting products for consumption. Under conditions like this, companies must be responsive to consumer desires. One of the popular e-commerce sites in Indonesia is Shopee.co.id. In this research, the independent variables are price (X1) and convenience (X2), while the dependent variable is the online purchasing decision (Y). This research aims to determine and analyze the influence of price and shopping convenience on online purchasing decisions of students from the Faculty of Computer Science at the E-Commerce Shoppe. The type of research used is quantitative research. The data processed is the result of distributing questionnaires to students of the Faculty of Computer Science at events using Google Form. The number of samples that will be used is 86 students. The sampling technique is: accidental sampling. In analyzing the data, the instruments used are the validity test, reliability test, multiple linear regression equation, f test, t test, and coefficient of determination test. The results of this research show that the results of the multiple linear test show that price has a negative and significant effect , comfort has a positive and significant effect. significant to online purchasing decisions of St. Catholic University Computer Science students. Thomas at E-Commerce Shoppe purchasing decisions.
PENGARUH SISTEM INFORMASI MANAJEMEN DAN LINGKUNGAN KERJA TERHADAP KINERJA TENAGA KEPENDIDIKAN PADA UNIVERSITAS KATOLIK SANTO THOMAS Situmorang, Theresa Sisilia; Gultom, Parapat
Jurnal Manajemen dan Bisnis Volume 24 No. 1 Tahun 2024
Publisher : UNIKA Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study entitled "The Influence of Management Information System and Work Environment on Educational Staff Performance at University of Saint Thomas Sumatera Utara". The purpose of this study was to determine the effect of Management Information System and Work Environment on Educational Staff Performance. This research method is descriptive research, hypothesis testing using multiple regression analysis. Data processing is done using SPSS. The population in this study were 78 educational staffs. In this study, sampling using the slovin formula, the number of samples in this study was 42 people. Based on the F test, it is known that the influence of the management information system and work environment on the performance seducational staff, together has a significant effect on the performance of staff. Based on the t test, it is known that the management information system has a positive and significant effecton the performance of educational staff and work environment has a positive and significant effecton the performance of educational staff. Based on the results of multiple linear regression, it is known that the variable that has the greatest influence on the performance of educational staff University Saint Thomas, Sumatera Utara is the work environment, which is 16,8 percent.
THE INFLUENCE OF PRICE AND SHOPPING CONVENIENCE ON ONLINE PURCHASE DECISIONS OF STUDENTS OF THE FACULTY OF COMPUTER SCIENCE, SANTO THOMAS CATHOLIC UNIVERSITY ON THE E-COMMERCE SHOPPE Bangun, Yohana; Gultom, Parapat
Jurnal Manajemen dan Bisnis Volume 24 No. 1 Tahun 2024
Publisher : UNIKA Santo Thomas

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In the current era of globalization, the internet is increasingly sophisticated and continues to develop, especially in the field of marketing, both in national and international markets. This competition is coupled with selectiveness. Companies must be able to communicate their products to consumers in selecting products for consumption. Under conditions like this, companies must be responsive to consumer desires. One of the popular e-commerce sites in Indonesia is Shopee.co.id. In this research, the independent variables are price (X1) and convenience (X2), while the dependent variable is the online purchasing decision (Y). This research aims to determine and analyze the influence of price and shopping convenience on online purchasing decisions of students from the Faculty of Computer Science at the E-Commerce Shoppe. The type of research used is quantitative research. The data processed is the result of distributing questionnaires to students of the Faculty of Computer Science at events using Google Form. The number of samples that will be used is 86 students. The sampling technique is: accidental sampling. In analyzing the data, the instruments used are the validity test, reliability test, multiple linear regression equation, f test, t test, and coefficient of determination test. The results of this research show that the results of the multiple linear test show that price has a negative and significant effect , comfort has a positive and significant effect. significant to online purchasing decisions of St. Catholic University Computer Science students. Thomas at E-Commerce Shoppe purchasing decisions.
The Influence of Product Bundling and Perceived Value on Continuance Intention through the Satisfaction of Non-Subsidized KPR Debtors Bank BTN Medan Branch Office Siregar, Ahir Diana Putri; Ginting, Paham; Gultom, Parapat
Asian Journal of Management Analytics Vol. 4 No. 3 (2025): July 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ajma.v4i3.14867

Abstract

This study aims to analyze the effect of product bundling and perceived value on continuance intention through satisfaction among non-subsidized mortgage debtors at Bank BTN, Medan Branch. Using a quantitative approach with 81 respondents selected purposively from 417 debtors, data were collected via questionnaires and analyzed using SEM-PLS. The results show that product bundling has a positive but not significant effect on satisfaction and continuance intention. In contrast, perceived value significantly affects both satisfaction and continuance intention. Satisfaction also significantly influences continuance intention. Additionally, perceived value has a significant indirect effect through satisfaction, while product bundling does not. These findings highlight the critical role of perceived value and satisfaction in encouraging continued use of banking services.
The Influence of Talent Management and Knowledge Management on Employee Performance with Employee Engagement as a Mediating Variable at PT. Bank Mandiri Branch, University of North Sumatra RS, Yoppy Mairizon; Absah, Yeni; Gultom, Parapat
Asian Journal of Management Analytics Vol. 4 No. 3 (2025): July 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ajma.v4i3.14909

Abstract

This study aims to examine the influence of knowledge management and talent management on employee performance, with employee engagement as a mediating variable at PT. Bank Mandiri (Persero) Tbk, University of North Sumatra Branch. Using a quantitative approach, data were collected through questionnaires from 36 employees and analyzed using path analysis with statistical software. The results show that both talent management and knowledge management have significant and positive effects on employee engagement and performance. Furthermore, employee engagement significantly influences performance and mediates the relationship between knowledge and talent management on performance. These findings highlight the importance of effective knowledge and talent management strategies to enhance employee engagement and overall performance.
Logistics distribution optimization model using multi-depot capacitated vehicle routing problem Rajagukguk, Angie Maretha; Esther Sorta Mauli Nababan; Parapat Gultom
Desimal: Jurnal Matematika Vol. 8 No. 2 (2025): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/cazand26

Abstract

Logistics distribution is vital for enhancing the efficiency and competitiveness of Indonesia. This research focuses on logistics distribution by introducing temporary depots in strategic locations to address the growing demands of the rapidly expanding e-commerce and transportation industries. As consumers increasingly expect faster and more efficient deliveries, logistics systems must adapt with flexible solutions. Temporary depots offer a practical approach to reducing delivery time, optimizing vehicle routes, and improving service efficiency to meet modern distribution challenges. The Multi Depot Vehicle Routing Problem model developed focuses on optimizing depot locations, vehicle allocation, and delivery routes while minimizing total distribution costs, including shipping, vehicle usage, depot construction, and travel from the distribution center to temporary depots. This research addresses how to minimize operational distribution costs, considering logistical demand, vehicle capacity, region visits, and flow conservation, while adhering to non-negative and binary constraints. The model aims to contribute to more efficient logistics planning, operational cost savings, and enhanced supply chain sustainability in Indonesia.
ANTESEDEN LOYALITAS PENGGUNA PUSAT BAHASA UNIVERSITAS SUMATERA UTARA Loebis, Roma Ayni A.; Gultom, Parapat
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 3 (2025): August 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i3.2639

Abstract

Abstract: Language services managed by the Language Center include TOEFL-ITP tests, ECT (English Competency Test) tests, English courses, Japanese courses, Arabic courses, Mandarin courses, and translation services for English, Japanese, Mandarin, and ethnic languages. This research aims to identify the factors (antecedents) that influence user loyalty to the Language Center at USU. The data analysis technique used is quantitative causal with multiple linear regression methods and partial least squares structural equation modeling (PLS-SEM). The population in this research consists of service users from April 2024, with a sample size of 110 respondents. The independent variables are tangibles, empathy, reliability, responsiveness, and assurance. The dependent variable is user loyalty, with the moderating variable being the availability of digital and non-digital facilities. The results indicate that service quality significantly influences user loyalty, while the availability of digital and non-digital facilities does not significantly affect user loyalty at the Language Center at USU. The implications of this research suggest that the Language Center at USU must maintain professionalism to sustain user loyalty.Keyword: Antecedents, Loyalty, Service Users
Co-Authors Abdul Munif Afryantika Pratiwi Aghni Syahmarani Akbar, Andini Alya Nadhira Nur Amanda, Ade Siti Andre Masago Manik Angginun Juwita Sari Anggita Rizki Defiani Hasibuan Apriliza, Yafika Arlina Nurbaity Lubis Arlina Nurbaity Lubis Asima Manurung Asima, Asima Azwar, Nurul Azri Azzahra, Firza Bangun, Yohana Beby Karina Fawzeea Sembiring Binsar Nommensen Hasiolan Nababan Br Ginting, Emmita Br Manalu, Chairi Indani Budi Chandra Chairi Indani Br Manalu Dalimunthe, Ritha F. Deby Nanda Sari Dian Natari Dwi Nurul Aisyah Eko Syafriadi Elikson Damanik Elisabet Siahaan Elly Rosmaini Elvin Juliani Gulo Endah Nurfebriyanti Endang Sulistya Rini Erlina Erlina Esther S. M. Nababan Esther SM Nababan Eunike Al Grea Ezra, Posman Felly Ardan Ferdiansyah, Ronando Firza Azzahra Fitria Khairani Frans Banta Tarigan Ginting, Jean Probosky Ginting, Yoga Gilbert Halasan Sirait Hanafiah, Arif Hardiansyah Hardiansyah Hartini Pratiwi Pane Hasibuan, Gamal Ali Akbar Hasibuan, Syarinah Junianti Hulu, Gracelin Nonifati Humaira, Siti Indah Permata Sembiring Indris Simanungkalit Irmayanti Nasution Iskandar Situmorang Ismail Napitupulu Jefri Leo Jonathan Liviera Marpaung Ketaren, Dahlia Rizky Keulana Erwin Khairunnisa Br Manurung Komarudin Komarudin Kristian, Abel Kurniasari, Rini Lestari, Nanda Linna Syahputri Loebis, Roma Ayni A. Mahyuddin K.M. Nasution Manalu, Mawar Winda Manulang, Dea Lonita Mardiningsih Mardiningsih Mardiningsih Maris Stella Sitorus Marpaung, J.L. Matriadi, Faisal Mey Ramayanti Tinambunan Mhd Diky Setiawan Mhd Reza Irjaldi Hasibuan Miftah Khairani Mindasari, Eva Miranda Moudy Fitria Respati Nababan, ESM Nababan, Esther S.M. Nababan, Esther Sorta Mauli Nabilah Faisal, Ananda Najang, Abdullah Natalia, Desy Denada Nazli Ramadhani Lubis Novi Yanti Nur Amalia, Syahamah Nurwijayanti Octavianus, Handy Oka Simatupang Open Darnius paham ginting Paskah Riny Sirait Pratiwi, Annisa Rizki Prihatin Lumbanraja Pujiana, Perli Purba, Titin Miduk Putra, Ramadhan Diansyah Putri Khairiah Nasution Rahmadhina, Namira Mudrikah Rajagukguk, Angie Maretha Ramadhani Fitri Rina Br. Bukit Rita F. Dalimunthe Ritha F. Dalimunthe Ritha F.Dalimunthe Ritonga , Ewy Lady Christin Robby Oksa Cornely Ronny Sung Roy Mulyadi Mardiyos RS, Yoppy Mairizon Ruslin Chaerul Cora Sabariah Sabariah Safira, Moza Sambas Ade Kesuma Saragih, Junawi Hartasi Sarah Madaniah Sartika Ningsih Sawaluddin Sawaluddin Sawaluddin Sawaluddin Sawaluddin, Sawaluddin Sembiring, Erwandi Martinus Sentosa, Ilham Shabrina Tifani Shafira, Meifanny Azri Siagian, Riris Regita Cahyani Siahaan, Elisabet Simanjuntak, Rahmad Simbolon, Miranda Melania Nathasia Sinaga, Hasanah Dwi Putri Sinurat, Rona Lamretta Sipayung, Aquinaldo Boyfame R. Sirait, Annisa Hidayati Siregar, Ahir Diana Putri Siregar, Dwi Faradiba Sitepu, Lia Eriska Br Siti Nurhaliza Siti Raha Agoes Salim Sitompul, Weny Grace Situmorang, Theresa Sisilia Sonya Putri Suherwin Suherwin Sukaria Sinulingga Suryati Sitepu Sutarman Sutarman Sutarman Sutarman Suyanto Suyanto Suyanto Suyanto Suyanto Syafriadi, Eko Syahputra, Muhammad Romi Syahrika Luthfi Syahriol, Syahriol T Khairunnisa Tambunan, Ayu Anggraini Tambunan, Gilbert Pauly Hamonangan Tarigan, Miska Irani Tata Winda Lesmana Thianujaya, Wendy Thianujaya, Wendy Thianujaya Tulus Tulus Tulus Utari, Cutserly Weber, Gerhard Wilhelm Wibisono Wibisono Widyasari, Rina Wulandari, Annisa yeni absah Yohanna Yunitha Simangunsong