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All Journal Signifikan : Jurnal Ilmu Ekonomi Al-Iqtishad : Jurnal Ilmu Ekonomi Syariah (Journal of Islamic Economics) Jurnal Manajemen Pelayanan Publik Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Masharif al-Syariah: Jurnal Ekonomi dan Perbankan Syariah JURNAL AGRICA Journal of Humanities and Social Studies Journal of Education, Humaniora and Social Sciences (JEHSS) Iqtishoduna: Jurnal Ekonomi Islam Jurnal Mantik Enrichment : Journal of Management Community Development Journal: Jurnal Pengabdian Masyarakat GOVERNANCE: Jurnal Ilmiah Kajian Politik Lokal dan Pembangunan AJAR (Asian Journal of Accounting Research) (e-Journal) Economics, Business and Management Science Journal Jurnal Ekonomi International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) JEMSI (Jurnal Ekonomi, Manajemen, dan Akuntansi) Journal of Social Research Jurnal Ilmiah Manajemen dan Bisnis (JIMBI) JAKPI Best Journal of Administration and Management Journal of Artificial Intelligence and Digital Business Innovative: Journal Of Social Science Research Amkop Management Accounting Review (AMAR) Indonesian Journal of Multidisciplinary on Social and Technology Ranah Research : Journal of Multidisciplinary Research and Development Journal of Social Work and Science Education Economit Journal
Ahmad Rafiki
Universitas Medan Area
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Transportation Other

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Overview of Halal Cosmetics in a Decade: A Bibliometric Analysis Suryani, Wan; Subri, Irwan Mohd; Rafiki, Ahmad; Tobing, Fitriani; Hidayat, Sutan Emir
Al-Iqtishad: Jurnal Ilmu Ekonomi Syariah Vol. 14 No. 1 (2022)
Publisher : UNIVERSITAS ISLAM NEGERI SYARIF HIDAYATULLAH JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/aiq.v14i1.23361

Abstract

This article applies bibliometric analysis to examine existing works and literature on Halal Cosmetics to explore the concept’s evolving journey since its emergence. This study applies bibliometric approaches such as citation, co-citation, and co-occurrence of author keywords based on a bibliometric analysis of 137 publications extracted from the Scopus database between 2004 and September 2021. This research examines and elaborates the kind and direction of research on Halal cosmetics undertaken over the last few decades. It also identifies the most influential writers, journals, institutions, and countries concerning Halal cosmetics. This study might provide academics and practitioners with detailed insights into the Halal cosmetics concepts, which can subsequently be used as a reference for strategic efforts. AbstrakArtikel ini menerapkan analisis bibliometrik untuk mengkaji karya dan literatur yang ada tentang kosmetik halāl untuk mengeksplorasi perjalanan konsep yang berkembang sejak kemunculannya. Penelitian ini menggunakan pendekatan bibliometrik seperti sitasi, co-citation, dan co-occurrence 137 publikasi yang diambil dari database Scopus antara tahun 2004 dan September 2021. Penelitian ini mengkaji dan menguraikan jenis dan arah penelitian tentang kosmetik halāl yang dilakukan selama beberapa dekade terakhir serta mengidentifikasi penulis, jurnal, institusi, dan negara paling berpengaruh tentang kosmetik halāl. Analisis SWOT singkat termasuk dalam penelitian ini. Kajian ini memberikan wawasan yang mendetail kepada akademisi dan praktisi tentang konsep kosmetik halāl, yang selanjutnya dapat digunakan sebagai referensi untuk upaya-upaya strategis.
TRANSFORMASI KINERJA KARYAWAN MELALUI BUDAYA ORGANISASI DAN KEPEMIMPINAN: SEBUAH ANALISIS DI PT BANK NEGARA INDONESIA (PERSERO) TBK MEDAN Kamel, Muhammad; Rafiki, Ahmad; Aisyah, Nur
Jurnal Akuntansi, Keuangan, Pajak dan Informasi (JAKPI) Vol 6, No 1 (2026)
Publisher : Unversitas Prof. Dr. Moestopo (Beragama)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32509/jakpi.v6i1.6915

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh budaya organisasi dan kepemimpinan transformasional terhadap kinerja karyawan pada PT Bank Negara Indonesia (Persero) Tbk Kantor Cabang Medan. Variabel budaya organisasi dalam penelitian ini meliputi amanah, kompetensi, harmonisasi, loyalitas, adaptif, dan kolaboratif, sedangkan kepemimpinan transformasional diposisikan sebagai variabel independen yang turut memengaruhi kinerja karyawan. Penelitian ini menggunakan pendekatan kuantitatif dengan desain asosiatif. Populasi penelitian adalah seluruh karyawan BNI Kantor Cabang Medan yang berjumlah 155 orang dan tersebar pada 22 unit kerja, yang terdiri atas satu kantor cabang utama dan 21 kantor cabang pembantu. Penentuan sampel dilakukan menggunakan teknik simple random sampling dengan rumus Slovin pada tingkat kesalahan 10 persen, sehingga diperoleh sampel sebanyak 61 responden. Data dikumpulkan melalui kuesioner terstruktur dan dianalisis menggunakan analisis regresi. Hasil penelitian menunjukkan bahwa secara simultan seluruh variabel budaya organisasi dan kepemimpinan transformasional berpengaruh positif dan signifikan terhadap kinerja karyawan. Secara parsial, amanah, kompetensi, harmonisasi, loyalitas, adaptif, kolaboratif, serta kepemimpinan transformasional terbukti berpengaruh positif dan signifikan terhadap peningkatan kinerja karyawan. Temuan ini mengindikasikan bahwa penguatan nilai-nilai budaya organisasi yang selaras dengan praktik kepemimpinan transformasional merupakan faktor penting dalam meningkatkan efektivitas dan kualitas kinerja karyawan. Penelitian ini merekomendasikan penguatan internalisasi budaya organisasi, peningkatan kompetensi berkelanjutan, serta pengembangan kepemimpinan yang adaptif dan kolaboratif guna mendukung kinerja karyawan yang berkelanjutan.
Pengaruh Elektronik Word Of Mouth, Brand Image, Competitive Advantage Terhadap Repurchase Interest Produk Deodorant Rexona Roll On Studi Kasus Kecamatan Tiganderket Kabupaten Karo Ginting, Ia Ninta Karina Br; Amelia, Wan Rizca; Rafiki, Ahmad
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 1 (2026): Februari - April
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i1.5683

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh Electronic Word of Mouth (E-WOM), Brand Image, dan Competitive Advantage terhadap minat beli ulang produk deodorant Rexona Roll On di Kecamatan Tiganderket, Kabupaten Karo. Perkembangan teknologi informasi dan meningkatnya penggunaan media digital mendorong konsumen untuk lebih aktif mencari serta membagikan informasi mengenai produk, sehingga E-WOM menjadi faktor penting dalam membentuk persepsi dan keputusan pembelian ulang. Selain itu, citra merek yang kuat serta keunggulan bersaing yang dimiliki perusahaan juga diyakini berperan dalam mempertahankan loyalitas konsumen. Penelitian ini menggunakan pendekatan kuantitatif dengan metode survei. Populasi penelitian berjumlah 15.073 orang, dengan sampel sebanyak 100 responden yang ditentukan menggunakan rumus Slovin. Teknik pengumpulan data dilakukan melalui penyebaran kuesioner yang telah diuji validitas dan reliabilitasnya. Metode analisis data yang digunakan meliputi uji asumsi klasik, analisis regresi linear berganda, uji parsial (uji t), dan uji simultan (uji F). Hasil uji asumsi klasik menunjukkan bahwa data berdistribusi normal dengan nilai signifikansi residual sebesar 0,200 (> 0,05), tidak terdapat gejala multikolinearitas dengan nilai Variance Inflation Factor (VIF) < 10 dan nilai tolerance > 0,1, serta tidak ditemukan gejala heteroskedastisitas. Hasil analisis regresi menunjukkan bahwa E-WOM, Brand Image, dan Competitive Advantage berpengaruh positif dan signifikan terhadap minat beli ulang produk Rexona Roll On, baik secara parsial maupun simultan. Dengan demikian, perusahaan diharapkan dapat meningkatkan strategi pemasaran digital, memperkuat citra merek, serta mempertahankan keunggulan bersaing guna mendorong peningkatan minat beli ulang konsumen.
Pengaruh Penggunaan Media Sosial dan Keterampilan Wirausaha Terhadap Keberhasilan Usaha Pada PT.Fritz Orlando Realty Mutiara, Putri; Rafiki, Ahmad
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 1 (2026): Februari - April
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i1.7830

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan media sosial dan keterampilan wirausaha terhadap keberhasilan usaha pada PT. Frizz Orlando Realty. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian asosiatif kausal untuk menguji hubungan antar variabel. Populasi dalam penelitian ini adalah karyawan dan staf pemasaran PT. Frizz Orlando Realty, dengan jumlah sampel sebanyak 40 responden yang dipilih menggunakan teknik purposive sampling. Pengumpulan data dilakukan melalui penyebaran kuesioner yang telah diuji validitas dan reliabilitasnya. Metode analisis data yang digunakan adalah analisis regresi linear berganda untuk mengetahui pengaruh secara parsial maupun simultan antara variabel independen terhadap variabel dependen. Hasil penelitian menunjukkan bahwa penggunaan media sosial secara parsial berpengaruh positif dan signifikan terhadap keberhasilan usaha. Keterampilan wirausaha juga secara parsial berpengaruh positif dan signifikan terhadap keberhasilan usaha. Selain itu, secara simultan kedua variabel tersebut memiliki pengaruh yang signifikan terhadap keberhasilan usaha. Temuan ini mengindikasikan bahwa optimalisasi penggunaan media sosial dan peningkatan keterampilan wirausaha dapat meningkatkan keberhasilan usaha perusahaan pada PT. Frizz Orlando Realty. Oleh karena itu, perusahaan perlu mengembangkan strategi pemasaran digital dan meningkatkan kompetensi kewirausahaan guna mencapai keberhasilan usaha yang berkelanjutan. Berdasarkan hasil uji koefisien determinasi (R²), diperoleh nilai R Square sebesar 0,104. Hal ini menunjukkan bahwa variabel Penggunaan Media Sosial mampu menjelaskan variabel dependen sebesar 10,4%, sedangkan 89,6% sisanya dipengaruhi oleh variabel lain di luar model penelitian.
Determinant Factors That Influence Repurchase Intention In Patients Of Bhayangkara Tk Ii Mas Kadiran Medan Hospital Iis Putri Julia; Nur Aisyah; Ahmad Rafiki
Economit Journal: Scientific Journal of Accountancy, Management and Finance Vol 4 No 1 (2024): Economit Journal: Scientific Journal of Accountancy, Management and Finance: (Feb
Publisher : Britain International for Academic Research (BIAR-Publisher)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/economit.v4i1.1072

Abstract

This study aims to find out what factors influence repurchase intention in patients at Bhayangkara TK II Mas Kadiran Hospital, Medan. This research method uses quantitative methods with associative research types. The sampling technique in this research used simple purposive sampling. The population in this study was 25,625 patients at Bhayangkara TK II Mas Kadiran Hospital, Medan and using the Slovin formula technique with a significance level of 0.05, the total sample in this study was 394 respondents taken from part of the population. The data analysis used in this research is structural equation modeling-partial least squares (SEM-PLS) using SmartPLS software. Based on the results of hypothesis testing, the variables brand association, brand loyalty, customer experience and perceived quality have a positive and significant effect on repurchase intention through customer satisfaction at Bhayangkara TK II Mas Kadiran Hospital, Medan.
A Hybrid PCA, MPK Method for Multi-Objective Human Resource Analytics in Plantation Management Gilang Ramadhan; Rahmad Syah; Ahmad Rafiki
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 10 No 3 (2026): June 2026
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29207/resti.v10i3.6903

Abstract

This study presents a hybrid framework combining Principal Component Analysis (PCA) and Multi‐Objective Complexity Prediction (MPK) to extract actionable insights from multidimensional human resource (HR) data in plantation companies. Initially, PCA reduces nine original HR variables including age, tenure, absenteeism, leave, harvest yield, and performance scores to four principal components that capture over 90 % of total variance. These reduced features form the solution space for MPK agents, each of which simultaneously optimizes three objectives: absenteeism risk (predicted via SVR), performance score (via linear regression), and workload imbalance. The model is tuned with 5-fold cross-validation on 80 % of the data, yielding MAE ≈ 6.5 days and R² ≈ 0.82 for absenteeism, MAE ≈ 4.2 points and R² ≈ 0.78 for performance, MAPE ≈ 15 % for workload imbalance, and a Pareto‐front hypervolume of ≈ 0.90. Validation on the remaining 20 % hold-out set confirms similar generalization (hypervolume ≈ 0.88). Sensitivity analysis with ± 10 % input noise demonstrates the approach’s robustness under moderate perturbations. These results illustrate that PCA–MPK can both streamline high-dimensional HR datasets and deliver reliable, multi-objective forecasts to inform strategic workforce planning.
Profitabilitas Perusahaan Perkebunan Kelapa Sawit: Studi Literatur Modal Kerja, Likuiditas, Struktur Modal, dan Ukuran Perusahaan Dedy Gurning; Yusniar Lubis; Ahmad Rafiki; Utari Azrani; Muhammad Reza Aulia
Ranah Research : Journal of Multidisciplinary Research and Development Vol. 8 No. 4 (2026): Ranah Research : Journal Of Multidisciplinary Research and Development
Publisher : Dinasti Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/rrj.v8i4.2150

Abstract

Profitability is a central indicator of corporate performance in palm oil plantation companies because the industry is capital intensive, relies on biological assets, and faces commodity price volatility. This article develops a narrative literature review of working capital management, liquidity, capital structure, and firm size in explaining profitability. The review synthesizes books, review articles, and previous empirical studies on cash turnover, receivables turnover, inventory turnover, current ratio, debt to equity ratio, and firm size. The synthesis indicates that working capital components should be interpreted as operational mechanisms rather than isolated ratios: cash secures operating continuity, receivables represent credit quality and collection efficiency, inventory reflects stock optimization, liquidity balances short-term safety and asset productivity, and capital structure reflects the cost-benefit trade-off of debt. Firm size is positioned as a contextual factor that can strengthen or weaken financial policy effectiveness. This article provides a conceptual framework for future empirical studies without presenting statistical results from company data. The synthesis offers practical guidance for financial managers in palm oil companies to determine an optimal working-capital buffer, accelerate receivables collection, align inventory levels with harvesting and processing cycles, and maintain liquidity without sacrificing asset productivity. Debt and financing decisions should also be aligned with operating cash-flow capacity and firm scale to safeguard profitability amid commodity-price fluctuations.
Pengaruh Kualitas Pelayanan dan Fasilitas terhadap Loyalitas Pelanggan Menggunakan Jasa Bengkel Mobil pada PT. Capella Daihatsu Medan Gatsu 2 Kelvin Siahaan; Ahmad Rafiki
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 2 (2026): Mei-Juli
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i2.11026

Abstract

This study aims to analyze the effect of service quality and facilities on customer loyalty at PT. Capella Daihatsu Medan Gatsu 2. Increasingly fierce competition in the automotive service industry requires companies to improve service quality and facilities in order to maintain customer loyalty. The population of this study consists of customers who have used the service more than once. The sample was determined using the Slovin formula, consisting of 99 respondents. Data were collected through questionnaires and analyzed using SPSS version 27. The results showed that service quality had a positive and significant effect on customer loyalty with a t-value of 3.834, which was greater than the t-table value of 1.985, and a significance value of 0.001, which was less than 0.05. Facilities also have a positive and significant effect on customer loyalty with a t-value of 3.493, which is greater than the t-table value of 1.985, and a significance value of 0.001, which is less than 0.05. Simultaneously, service quality and facilities have a significant effect on customer loyalty with a calculated F value of 92.428, which is greater than the F table value of 3.09, and a significance value of 0.001, which is less than 0.05. The coefficient of determination test results show an Adjusted R Square value of 0.651, which means that 65.1% of the variation in customer loyalty can be explained by service quality and facilities, while the remaining 34.9% is influenced by other factors outside this study. Adjust to the abstract writing style.
EDUKASI LITERASI KEUANGAN, TEKNOLOGI FINANSIAL, DAN PENGENDALIAN DIRI BAGI SISWA SEKOLAH DARUSSALAM UNTUK MEMBENTUK REMAJA CERDAS MENGELOLA KEUANGAN Sari Nuzullina Rahmadhani; Ahmad Rafiki; Fitriani Tobing
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 7 No. 3 (2026): Vol. 7 No. 3 (2026)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v7i3.61491

Abstract

Perkembangan teknologi digital telah meningkatkan penggunaan layanan keuangan digital di kalangan remaja. Namun, tingginya akses terhadap teknologi finansial belum diimbangi dengan literasi keuangan dan pengendalian diri yang memadai, sehingga berpotensi mendorong perilaku konsumtif dan penggunaan layanan keuangan yang kurang bijaksana. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan literasi keuangan, pemahaman teknologi finansial, dan pengendalian diri siswa Sekolah Darussalam melalui model SMART-FIN (Smart Financial Literacy, Financial Technology, and Self-Control). Metode yang digunakan meliputi lima tahapan, yaitu Assess, Educate, Practice, Evaluate, dan Mentoring. Evaluasi dilakukan melalui pre-test dan post-test, observasi, serta penilaian praktik peserta. Hasil kegiatan menunjukkan adanya peningkatan pemahaman siswa mengenai pengelolaan keuangan, penggunaan teknologi finansial secara aman, serta kemampuan membedakan kebutuhan dan keinginan dalam pengambilan keputusan keuangan. Program SMART-FIN efektif meningkatkan pengetahuan, keterampilan, dan perilaku keuangan siswa, serta berpotensi diterapkan pada sekolah menengah lainnya sebagai model edukasi keuangan berkelanjutan.
The Influence of Brand Image and Service Quality on Customer Loyalty Through Customer Satisfaction Sirfia Yamin; Ahmad Rafiki; Indawati Lestari
Journal of Social Work and Science Education Vol. 7 No. 3 (2026): Journal of Social Work and Science Education
Publisher : Yayasan Sembilan Pemuda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52690/jswse.v7i3.1637

Abstract

This study aims to analyze the effects of Brand Image and Service Quality on Customer Loyalty through Customer Satisfaction as a mediating variable at Bigowner Surya Nusantara Safety Store in Medan City. This study employed a quantitative approach with a causal associative research design. The population consisted of 877 customers who had conducted transactions during the previous seven months, from which 90 respondents were selected using purposive sampling. Primary data were collected through structured questionnaires and analyzed using Partial Least Squares–Structural Equation Modeling (PLS-SEM) with SmartPLS. The results demonstrate that Brand Image and Service Quality have positive and significant effects on Customer Satisfaction. Customer Satisfaction also has a positive and significant effect on Customer Loyalty. Furthermore, Brand Image and Service Quality have positive and significant direct effects on Customer Loyalty. The mediation analysis reveals that Customer Satisfaction does not significantly mediate the relationship between Brand Image and Customer Loyalty, indicating that a favorable brand image tends to influence customer loyalty more directly. In contrast, Customer Satisfaction significantly mediates the relationship between Service Quality and Customer Loyalty, demonstrating that improved service quality enhances customer satisfaction, which subsequently strengthens customer loyalty. These findings highlight the importance of maintaining a strong brand image and consistently improving service quality to enhance customer satisfaction and foster sustainable customer loyalty.
Co-Authors Abdullah Al-Hadrami abdur rasyid Adel Sarea Adelia Winanda Adelina Lubis Akbar Siregar Alda Kartika Amrin Mulia Utama Nasution Ayu, Younda Dwi Azhari, Saiful Citra Ariando Dedy Gurning Eka Dewi Setia Tarigan Erliyanto, Sindi Fachry Abda El Rahman Fitriani Tobing Gilang Ramadhan Ginting, Ia Ninta Karina Br Hery Syahrial Hidayat, Sutan Emir Hutagalung, Mhd Rezi Ramadhan Ihsan Effendi Iis Putri Julia Indawati Lestari Irwan Mohd Subri Jafar Syahbuddin Ritonga Kamel, Muhammad Kelvin Siahaan Khoirul Imami Sitorus Laila Annisyah lubis M. Akbar Siregar Muhammad Dharma Tuah Putra Nasution Muhammad Reza Aulia Muhammad Sapi&#039;i Dalimunthe Muhammad Yamin Siregar Muslim Wijaya, Muslim Mutiara, Putri Nasrullah Hidayat, Nasrullah Nauval Rachman Siregar Nur Aisyah Pahlufi, Cut Kesuma Pananjung, AlFatih Gessan R. Turino Januar Budyanto R. Turino Januar Budyanto Rahmad B.Y Syah Rahmadhani, Sari Nuzullina Sari Narulita Hasibuan Setiyawan, Dedy Sibarani, Andreas Remico Siregar, Muhammad Ibrahim Hafizh Sirfia Yamin Siti Mardiana Sitorus, Vira Rezkika Subri, Irwan Mohd Sutan Emir Hidayat Sutan Emir Hidayat Syafitri Wahyuni Syahbudin Hasibuan Syahputra, Fadhil Helmi Tarigan, Zefanio Vernandes Utari Azrani Wahyu Al Furqon Harahap Wan Rizca Amelia Wan Suryani Wan suryani Yossie Rossanty Yuni Syahputri Yusniar Lubis Yusniar Lubis Zesi Mardi