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INDONESIA
Indonesian Journal of Innovation Studies
Published by Universitas Muhammadiyah Sidoarjo
ISSN : -     EISSN : 25989936     DOI : https://doi.org/10.21070/ijins.v17i
Core Subject : Science, Education, Social, Engineering,
Computer Science & IT Education Engineering Law, Crime, Criminology & Criminal Justice
Indonesian Journal of Innovation Studies (IJINS) is a peer-reviewed journal published by Universitas Muhammadiyah Sidoarjo four times a year. This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.This journal aims is to provide a place for academics and practitioners to publish original research and review articles. The articles basically contains any topics concerning new innovation on all aspects. IJINS is available in online version. Language used in this journal is Indonesia or English.
Arjuna Subject : Umum - Umum
Articles 873 Documents
 75   76   77   78   79 
Cultural and Religious Values in Shaping Future Taxpayer Compliance: Nilai Budaya dan Religiusitas dalam Membentuk Kepatuhan Calon Wajib Pajak Wardani, Dewi Kusuma; Azizah, Mega
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1584

Abstract

General background: Tax compliance plays a critical role in sustaining national development, yet individual compliance remains relatively low in Indonesia. Specific background: Previous studies largely emphasize technical or regulatory factors, while limited attention is given to cultural and spiritual values. Knowledge gap: Few studies explore the integration of Ki Hadjar Dewantara’s Tri N teachings with religiosity in explaining prospective taxpayers’ compliance. Aims: This study investigates how understanding the Tri N values (niteni, niroake, nambahi) and religiosity contribute to compliance intentions among accounting students. Results: Using a quantitative approach with 100 respondents and multiple regression analysis, findings show both Tri N understanding and religiosity significantly predict compliance, with religiosity showing a stronger coefficient. Novelty: This study offers a unique cultural-spiritual integration within behavioral taxation, highlighting that Tri N values support moral and character development while religiosity provides stronger internalized motivation for compliance. Implications: The findings suggest that tax education programs should incorporate local cultural wisdom and religious values to foster voluntary compliance among young taxpayers, strengthening fiscal trust and long-term sustainability. Highlight Tri N values and religiosity significantly predict taxpayer compliance Religiusitas exerts stronger influence than cultural values Education programs should integrate local wisdom with fiscal policy Keywords Tri N Values, Religiosity, Tax Compliance, Cultural Wisdom, Behavioral Taxation
Optimizing Paving Block Parameters with Taguchi Method for Higher Compressive Strength: Optimasi Parameter Bata Paving Menggunakan Metode Taguchi untuk Meningkatkan Kekuatan Tekanan Syarifah, Faranisa Aulia Ar Rahma; Rochmoeljati, Rr.
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1594

Abstract

General background: The growing demand for high-quality paving blocks in Indonesia requires manufacturers to consistently meet SNI standards, particularly in compressive strength, as it determines durability and safety. Specific background: At PT. XYZ, production inconsistencies often lead to cracks during testing, highlighting variability in process parameters. Knowledge gap: Although the Taguchi method has been widely applied in manufacturing quality improvement, its systematic integration with multiple critical parameters in paving block production remains underexplored. Aim: This study seeks to optimize compressive strength by applying the Taguchi Design of Experiments with an L₉ orthogonal array, focusing on cement–sand ratio, fly ash content, and aggregate size. Results: Signal-to-Noise Ratio and ANOVA analyses revealed that cement–sand ratio is the most influential factor, followed by fly ash and aggregate type, with the optimal combination of 3:5 cement–sand ratio, 3% fly ash, and medium aggregate (5–10 mm), producing a compressive strength of 42.16 MPa—exceeding the SNI minimum of 40 MPa. Novelty: This research introduces a robust model that integrates Taguchi and ANOVA to validate optimal production parameters specifically for paving block manufacturing. Implications: The findings provide practical guidelines for improving product consistency, reducing defects, and supporting cost-effective quality engineering in the paving block industry. Highlights: Taguchi design identified optimal cement–sand ratio, fly ash, and aggregate size. Optimal parameters achieved 42.16 MPa, exceeding SNI standards. Integration of Taguchi and ANOVA ensures consistent, cost-effective quality control. Keywords: Paving Block, Compressive Strength, Taguchi Method, ANOVA, Quality Engineering
Independent Production of Regular Portland Cement Assessed by Simulation and Net Present Value: Produksi Mandiri Semen Portland Biasa dievaluasi melalui simulasi dan Nilai Sekarang Bersih (NPV) Nugroho, Tito Dwi; Iriani, Iriani
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1603

Abstract

General background: Ensuring supply continuity and efficiency in cement distribution is a critical challenge for manufacturing companies. Specific background: PT. S faces a strategic decision between producing Ordinary Portland Cement (OPC) in-house or purchasing from external suppliers. Knowledge gap: Previous studies often assess make-or-buy decisions in general terms but rarely integrate operational simulations with financial feasibility for cement distribution. Aims: This study evaluates the comparative feasibility of in-house OPC production versus external purchasing by analyzing demand forecasting, production capacity, distribution performance, and economic outcomes. Results: Using Discrete-Event Simulation (DES), the study finds that a two-day pre-production strategy meets demand of 1,803 tons with a trailer cycle time of 89.9 minutes and effective loading duration of 7 hours and 35 minutes. Net Present Value (NPV) analysis reveals that the in-house option yields Rp2.16 billion, outperforming the buy option’s negative Rp3.18 billion. Novelty: The integration of DES with NPV offers a robust framework for linking operational efficiency and financial viability in cement supply chain decisions. Implications: The findings indicate that in-house production is the more feasible option, providing higher financial returns, reducing supplier dependency, and strengthening operational resilience. Highlights: In-house OPC production outperforms external purchasing financially. DES + NPV integration provides a novel decision-making framework. Strategy strengthens supply continuity and operational resilience. Keywords: Make or Buy, OPC Cement, Discrete Event Simulation, Distribution Strategy, NPV Analysis
Web-Based Learning Path with Create Interest, Explore Concepts, Reflect, Discuss, Act, Conclude and Share for Developing Student Responsibility: Alur Pembelajaran Berbasis Web dengan Ciptakan Ketertarikan, Eksplorasi Konsep, Rasakan dan Refleksikan, Diskusi Bersama, Aksi Nyata, serta Simpulkan dan Sebarkan untuk Mengembangkan Tanggung Jawab Peserta Didik Nuraini, Dewi; Hamdani, Nizar Alam; Nurjamil, Asep; Darmawan, Deni; Rahadian, Dian; Rahayu, Ayu Puji
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1645

Abstract

Background: Character education in Indonesia requires learning approaches that go beyond content mastery to foster responsibility among students. Specific background: Conventional methods in civic education have proven less engaging and inadequate in cultivating responsible attitudes. Knowledge gap: Limited models exist that integrate technology-driven, interactive approaches with systematic character formation. Aim: This study developed and implemented a web-based CERDAS learning path to foster responsibility in junior high school students, specifically in the context of civic rights and obligations. Results: Using the ADDIE model, six stages of CERDAS (Create Interest, Explore Concepts, Reflect, Discuss, Act, Conclude and Share) were designed and validated. Testing with 30 ninth-grade students demonstrated significant growth in responsibility, reflected in discipline, autonomy, collaboration, and commitment. High validation scores (96% for material, 87% for media) confirmed the product’s feasibility. Novelty: This study introduced a systematic, web-based instructional flow explicitly designed to shape responsibility through interactive civic learning. Implications: The CERDAS model offers a scalable strategy for embedding responsibility into digital civic education, contributing to character-based education in Indonesia and beyond. Highlights Students showed greater responsibility in academic, social, and collaborative tasks. Web-based CERDAS learning path engaged students actively in civic education. Validation confirmed the model is feasible and adaptable for broader use. Keywords: Web-Based Learning, Civic Education, Student Responsibility, Interactive Model, CERDAS Path
Optimizing Raw Material Inventory Control with ABC and Min-Max Methods: Optimasi Pengendalian Persediaan Bahan Baku dengan Metode ABC dan Min-Max Pradinain, Rizky Fadilla; Ernawati, Dira; Dewi, Sinta
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1648

Abstract

General background: Inventory control is a critical component in the printing industry, where efficiency and accuracy directly affect production continuity and cost management. Specific background: PT XYZ, a printing and packaging company using an offset-based make-to-order system, faces recurring issues of overstock and inefficiency due to the absence of systematic inventory prioritization and stock regulation. Knowledge gap: Prior studies confirm the utility of ABC Analysis and Min-Max Stock methods, but limited research evaluates their combined application in the context of printing industries with fluctuating demand. Aims: This study aims to optimize raw material inventory control of paper and ink through the integration of ABC Analysis and Min-Max Stock methods. Results: Findings reveal that four types of paper and three types of ink fall under category A, and applying Min-Max Stock significantly reduced order frequency and safety stock, achieving cost savings up to 73% for paper and 30% for ink compared to the company’s conventional method. Novelty: The study demonstrates that combining both methods yields higher efficiency and adaptability than using either approach in isolation. Implications: This integrated approach offers strategic guidance for printing companies to achieve sustainable, structured, and cost-effective inventory management. Highlights: Significant cost savings achieved (up to 73% for paper, 30% for ink). Integration of ABC and Min-Max methods ensures efficient and adaptive control. Provides strategic guidance for sustainable inventory management. Keywords: Inventory Control, ABC Analysis, Min-Max Stock, Raw Materials, Cost Efficiency
Applying the House of Risk Method for Operational Risk Management in the Frozen Food Industry: Penerapan Metode Rumah Risiko dalam Pengelolaan Risiko Operasional di Industri Makanan Beku Nagata, Adyatma; Iriani, Iriani; Syaifullah, Hafid
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1654

Abstract

General Background: The frozen food industry is expanding rapidly in Indonesia, driven by consumer demand for practical, nutritious, and long-lasting products. Specific Background: However, small and medium-sized enterprises (SMEs) in this sector, such as UD Mitra Abadi in Lamongan, face operational challenges including limited cold storage, fluctuating raw material prices, and inadequate cold chain management. Knowledge Gap: Despite growing awareness of risk management, many SMEs still depend on intuition rather than structured analytical methods, leaving them vulnerable to operational disruptions. Aims: This study applies the House of Risk (HOR) method, integrated with ISO 31000:2018, to systematically identify, analyze, and mitigate operational risks in frozen food production. Results: The analysis identified 15 risk events and 26 risk agents, with key issues such as poor interdepartmental coordination, non-compliance with SOPs, and weak cold chain practices. From 18 proposed preventive actions, six were prioritized based on their Effectiveness-to-Difficulty ratio, including the use of styrofoam packaging, daily briefings, Kanban boards, and 5R principles. Novelty: This study demonstrates a structured, resource-sensitive approach to operational risk management tailored for SMEs in the frozen food sector. Implications: The findings provide practical, scalable mitigation strategies that enhance resilience, efficiency, and competitiveness in similar industries. Highlights: Identified 15 risk events and 26 risk agents in frozen food operations. Prioritized 6 effective preventive actions using House of Risk analysis. Provides practical, resource-sensitive strategies for SMEs’ resilience. Keywords: Frozen Food Industry, Operational Risk, House of Risk, Risk Management, SMEs
Optimal Line Balancing with Region Approach and Ranked Positional Weight: Penyeimbangan Garis Optimal dengan Pendekatan Wilayah dan Bobot Posisi Berurutan Zahra, Salsabila Aulia; Rusindiyanto, Rusindiyanto
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1659

Abstract

General Background: Micro, small, and medium enterprises (MSMEs) are vital to regional economic growth, yet many face production inefficiencies. Specific Background: UMKM Aneka Songkok Jombang, a producer of embroidered songkok, struggles with unbalanced production lines causing excessive work-in-progress, long waiting times, and unmet market demand. Knowledge Gap: Previous studies seldom compare line-balancing methods tailored to small-scale handicraft industries with complex station workflows. Aims: This research aims to enhance production line performance by applying the Region Approach (RA) and Ranked Positional Weight (RPW) methods to achieve optimal line balancing. Results: Stopwatch Time Study revealed initial efficiency of 47%, balance delay of 53%, and idle time of 45.24 minutes. Implementation of RA improved efficiency to 74%, reduced balance delay to 26%, and cut idle time to 14.41 minutes, while RPW achieved superior outcomes with 82% efficiency, 18% balance delay, and 8.87 minutes idle time. Novelty: This study provides a comparative evaluation of RA and RPW in a traditional MSME context, highlighting RPW’s higher effectiveness for small-scale, high-variability production. Implications: Findings guide MSMEs in adopting RPW for strategic line balancing, enabling improved productivity, reduced waste, and enhanced competitiveness in local and international markets. Highlights: RPW method achieved the highest efficiency (82%) with the lowest idle time (8.87 minutes). Comparative analysis shows RPW outperforms RA for small-scale production balancing. Implementation reduces work-in-progress and meets increasing market demand. Keywords: Line Balancing, Region Approach, Ranked Positional Weight, Songkok Production, MSME Efficiency
Student Engagement in Science and Social Studies Learning through Project-Based Learning and Poster Media: Keterlibatan Siswa dalam Pembelajaran Ilmu Pengetahuan Alam dan Sosial melalui Project-Based Learning dan Media Poster Aspita; Sundahry; Nofrianni, Elvima
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1671

Abstract

General Background: Science and social studies learning in Indonesian elementary schools often relies on teacher-centered instruction, leading to low student motivation and outcomes. Specific Background: Many students in IPAS subjects have not reached the Learning Objectives Achievement Criteria due to limited innovative strategies. Knowledge Gap: Previous studies have shown the value of Project-Based Learning (PBL), yet few have integrated visual media such as posters in elementary IPAS classrooms. Aim: This study investigated how combining PBL with poster media supports active participation and improves student outcomes in grade IV. Results: Conducted as Classroom Action Research in two cycles with 26 students, the study revealed substantial progress. Teacher implementation rose from 72.72% to 90.91%, students in the “very good” activity category increased from 6 to 13, and average scores improved from 74.42 to 82.12, raising mastery from 57.69% to 80.77%. Novelty: Integrating poster media into PBL provided concrete visual support aligned with students’ developmental stage, enhancing engagement and comprehension. Implications: These findings suggest that combining project-based learning with visual aids offers a practical, effective strategy for elementary classrooms to foster motivation, critical thinking, and deeper understanding. Highlight Active student participation increased with project-based learning and poster use. Teacher performance and classroom interaction showed steady improvement. Student achievement in IPAS rose significantly across both research cycles. Keyword Project-Based Learning, Poster Media, Student Engagement, Elementary Education, Science Learning
Prioritizing Customer Loyalty Strategies Using Customer Journey Mapping and Analytic Hierarchy Process Ihsananda, Nadhim; Safirin, Moch Tutuk; Syaifullah, Hafid
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1672

Abstract

Background (General): The rapid growth of Indonesia’s culinary sector has intensified competition, making customer loyalty a key determinant of business sustainability and competitiveness. Background (Specific): Small and medium enterprises (SMEs), such as Jatinangor House, face challenges in maintaining loyalty due to inconsistent marketing strategies, limited resources, and underutilization of digital platforms. Knowledge Gap: While Customer Journey Mapping (CJM) and Analytic Hierarchy Process (AHP) have been studied individually, their integrated application in the Indonesian SME food sector to analyze and prioritize loyalty strategies remains underexplored. Aims: This study investigates the dominant strategy for enhancing customer loyalty at Jatinangor House Ketintang Branch by combining CJM to identify experiential gaps and AHP to prioritize strategic interventions. Results: Findings reveal that standardization of service, portion size, and cleanliness is the most critical priority (weight 0.365), followed by improvement of online menu information and digital promotion, whereas loyalty programs are less effective without operational consistency. Novelty: The study uniquely integrates CJM and AHP to provide structured, customer-centric marketing strategies for SMEs in the Indonesian food industry. Implications: These results emphasize that improving fundamental service quality and digital visibility must precede loyalty initiatives, offering both practical recommendations for SME management and theoretical contributions to marketing strategy research Highlights: Integration of CJM and AHP reveals service quality as the top loyalty driver. Digital visibility and menu information are crucial for customer consideration. Loyalty programs are ineffective without operational consistency. Keywords: Customer Journey Mapping, Analytic Hierarchy Process, Customer Loyalty, Marketing Strategy, SMEs
The Effect of Solar Panel Tilt Angle Automation on the Efficiency of Hybrid Renewable Energy Systems (HRES) Diraharja, Rifat Satrio; Rhakasywi, Damora; Fahrudin, Fahrudin
Indonesian Journal of Innovation Studies Vol. 26 No. 4 (2025): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i4.1674

Abstract

Background (General): Renewable energy is increasingly critical as fossil fuel reserves decline and global energy demand rises. Background (Specific): Hybrid Renewable Energy Systems (HRES) that combine solar photovoltaic (PV) and wind energy offer reliable alternatives, but fixed solar panels limit energy capture due to suboptimal orientation. Knowledge Gap: While solar tracking has been explored, its effectiveness within small-scale HRES prototypes in real-world conditions remains underexamined. Aim: This study investigates the impact of automated solar panel tilt adjustment on the efficiency of a small-scale HRES integrating a vertical-axis wind turbine. Results: Experimental testing over five days demonstrated that the automated tilt system enhanced solar energy capture by 23–43% compared to fixed-tilt configurations, with daily energy outputs reaching 1,020 Wh, although battery charging remained capped at 60% due to charge controller restrictions. Novelty: The research highlights a low-cost, single-axis automation mechanism controlled by ESP32 and LDR sensors, providing a feasible and scalable solution for off-grid applications. Implications: Findings underscore the potential of affordable solar tracking in hybrid systems to improve energy access in rural or remote areas, while emphasizing the need for improved storage management to fully realize efficiency gains Highlights: Automated tilt improved solar energy capture by 23–43%. Low-cost, ESP32–LDR system proved feasible for rural use. Battery charging limited at 60% due to controller settings. Keywords: Solar Tracking, Hybrid Renewable Energy, Tilt Angle Automation, Energy Efficiency, Off-Grid Systems

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