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This study aims to conduct a systematic literature review and bibliometric analysis on Transformational Leadership (TL), based on empirical research. Despite extensive studies on TL in recent decades, comprehensive research remains limited. The methodology used is a Systematic Literature Review (SLR) of articles containing “Transformational Leadership” in the title, abstract, or keywords, sourced from the Scopus database, which yielded 1,297 publications from 1977 to 2025. The data were analyzed using VOSviewer software. The findings suggest that TL is an innovative model in vocational education, bridging industrial systems with academic environments for authentic, practice-based learning. However, challenges include limited resources, insufficient instructor training, and inadequate institutional support. Recent innovations, such as advanced ICT, holographic technology for real-time interaction, and digital twins for process optimization, have enhanced the model's effectiveness. The study also discusses the conceptual framework of TL. This research uses the Scopus database, and future studies could broaden its scope by incorporating other databases like Web of Science. Practically, the study’s findings suggest integrating modern pedagogical strategies, including gamification, simulation, and project-based learning, to enhance student engagement and understanding of manufacturing processes. Socially, it encourages educational institutions to invest in infrastructure, strengthen industry partnerships, and provide continuous instructor training. This study highlights the growing global research on TL and calls for deeper exploration of the topic in existing literature.

Abstract. This study aims to analyze the effect of four-wheeled vehicle production and imports on the unemployment rate in West Java Province during the 2016–2023 period. The background of the study stems from the fluctuating conditions of vehicle production and imports, as well as West Java's unemployment rate, which tends to be higher than the national average. The study employed a quantitative approach with secondary data obtained from Statistics Indonesia (BPS) and the Indonesian Association of Indonesian Automotive Manufacturers (GAIKINDO). The analytical method used was multiple linear regression to determine the simultaneous and partial effects between variables. The results show that four-wheeled vehicle production and imports simultaneously have a significant effect on the unemployment rate. Partially, four-wheeled vehicle production has a significant negative effect, meaning that increased production can reduce the unemployment rate in West Java. Conversely, four-wheeled vehicle imports have no significant effect on the unemployment rate, so increased imports do not directly affect labor absorption. The coefficient of determination of 83.4% indicates that production and imports contribute significantly to explaining variations in the unemployment rate. These research findings emphasize the importance of strengthening the automotive industry sector as a strategy to reduce unemployment in West Java.

Nutritional problems during the growth phase of adolescent are mostly caused by consumption patterns. The most commonly used eating patterns during adolescent are foods that are high in calories, fat, sugar and salt. The habits of an unhealthy eating pattern can affect nutritional status. The foods most consumed by adolescent are often junk food and caffeinated beverages. All kinds of food and drinks are easily found around campuses surrounded by student. The purpose of this study was to determine the relationship between junk food consumption and caffeinated beverages to the nutritional status of students of the Faculty of Technology and Food Industry at Slamet Riyadi University, Surakarta. The respondents involved were students aged 18-24 years. Data was collected using a questionnaire and interview to the student. Data were analyzed using Chi-Square test. The results showed that factor affecting the nutritional status of student was mother’s education (p=0,000) and father’s education (p=0.000). Factors that do not affect nutritional status were energy intake (p=0.545), protein (p=0.085), fat (p=0.204) and carbohydrate (p=0.112), the amount of pocket money (p=0.310), the consumption level of junk food (p=0.671) and caffeinated drinks (p=0.535). The results showed that there was no significant relationship between the consumption patterns of junk food and caffeinated drinks on the nutritional status of students of the Faculty of Food Technology and Industry at Slamet Riyadi University, Surakarta. Permasalahan gizi yang terjadi saat pertumbuhan fase remaja lebih banyak disebabkan karena pola konsumsi.  Pola makan yang sering diterapkan pada masa remaja adalah makanan tinggi kalori, lemak, gula, dan garam. Pola makan yang tidak sehat dapat mempengaruhi status gizi seseorang. Makanan yang paling banyak dikonsumsi oleh kalangan remaja masuk dalam kategori junk food dan juga minuman berkafein. Makanan dan minuman kategori ini mudah ditemukan di sekitar kampus yang dikelilingi mahasiswa. Tujuan pada penelitian ini ialah menentukan hubungan pola konsumsi junk food dan minuman berkafein terhadap status gizi mahasiswa Fakultas Teknologi dan Industri Pangan di Universitas Slamet Riyadi, Surakarta. Responden yang terlibat ialah mahasiswa berusia 18-24 tahun. Pengumpulan data menggunakan kuesioner dan wawancara kepada mahasiswa. Analisis data menggunakan uji Chi-Square. Hasil penelitian menunjukkan bahwa faktor yang mempengaruhi status gizi mahasiswa adalah pendidikan ibu (p=0.000) dan pendidikan ayah (p=0.000). faktor yang tidak mempengaruhi status gizi ialah asupan energi (p=0.545), protein (p=0.085), lemak (p=0.204) and karbohidrat (p=0.112), jumlah uang saku (p=0.310), tingkat konsumsi junk food (p=0.671) dan minuman berkafein (p=0.535). Hasil penelitian menunjukkan tidak terdapat hubungan signifikan antara pola konsumsi junk food dan minuman berkafein terhadap status gizi mahasiswa Fakultas Teknologi dan Industri Pangan Universitas Slamet Riyadi, Surakarta.

Program pengabdian ini menjawab kesenjangan kapasitas UMKM di Desa Plelen sebagai desa penyangga Kawasan Industri Terpadu Batang (KITB), khususnya pada aspek kualitas produk, keterampilan manajerial, dan kelembagaan ekonomi masyarakat. Tujuan utama kegiatan adalah meningkatkan kesiapan UMKM dalam memanfaatkan peluang ekonomi industri melalui: (1) peningkatan kualitas produk dan kemasan; (2) pelatihan manajemen usaha dan penyusunan business plan; serta (3) fasilitasi pembentukan Koperasi Merah Putih sebagai wadah ekonomi kolektif. Pendekatan Pembelajaran Berbasis Partisipatif diterapkan untuk memastikan keterlibatan masyarakat dalam seluruh tahapan program. Hasil pendampingan menunjukkan peningkatan signifikan pada diversifikasi produk, standar higienitas produksi, literasi bisnis, serta terbentuknya koperasi yang berfungsi mendukung pemasaran dan keberlanjutan usaha. Dengan demikian, model pemberdayaan terintegrasi yang menguatkan aspek teknis, manajerial, dan kelembagaan terbukti efektif dalam mempersiapkan desa penyangga menuju transformasi sosial-ekonomi yang inklusif dan adaptif terhadap industrialisasi.

Economic growth is the process of increasing a country's production capacity to generate goods and services over a specific period, reflecting the income and well-being of its people. This research aims to analyse the influence of labor, exchange rates, and exports on the Gross Domestic Product (GDP) of the manufacturing sector in Indonesia during the period 2010-2024. The method used is multiple linear regression analysis with the Ordinary Least Square (OLS) approach, using secondary data obtained from the Central Bureau of Statistics (BPS) and Bank Indonesia (BI). The research results indicate that all three independent variables, namely labor, exchange rate, and exports, have a positive and significant impact on the GDP of the manufacturing sector, both partially and simultaneously. The coefficient of determination (Adjusted R2) value of 0.9633 indicates that 96.33% of the variation in industrial sector GDP can be explained by these three variables, while 3.76% is influenced by factors outside the model. This research confirms that increased labour productivity, exchange rate stability, and export growth play an important role in strengthening the performance of the manufacturing sector in Indonesia. Therefore, policies focused on improving the quality of human resources, strengthening export competitiveness, and ensuring macroeconomic stability are needed to support the sustainable and globally competitive growth of the manufacturing sector.

Indonesia has extraordinary resources and potential in developing renewable energy sources (RES), but various obstacles must be overcome in implementing RES. The purpose of this study is to analyze the gap in the application of RES. This gap includes energy knowledge, community participation, battery waste management, service quality, regulation, and legal policy. This study uses a mixed-methods approach, by conducting a structured questionnaire in quantitative data collection, while qualitative data collection through special interviews, focused group discussions, and conducting policy regulation analysis. The results show that 62% of people do not understand RES, 28% are involved in project planning, and 74% are unaware of SOP (standard operating procedures) regarding battery waste recycling. The results of the correlation analysis reveal a positive relationship between the level of knowledge and interest in RES (R = 0.56). Also, the developed community-based participation model includes initial involvement, transparency of information, and local incentives. These findings further strengthen the compatibility of the innovation diffusion theory, planned behavior theory, SERVQUAL, and the theory of public interest. This study will make a practical contribution through evidence-based strategies in increasing resilience, especially for policymakers and energy service providers. The impact of the policy aspects includes the need for large reforms, education, public campaigns, and the realization of battery waste management systems. This study also provides an opportunity for further study by expanding the geographical scope and related industrial sectors.  

This study aims to analyze the quality of coal from the AR_10 borehole in Muara Enim Regency, South Sumatra, based on proximate analysis. The AR_10 borehole has three coal seams (A, B, and C) that were analyzed using the standard ASTM method to determine the coal quality characteristics. The parameters analyzed include total moisture (TM), volatile matter (VM), fixed carbon (FC), ash content (Ash), calorific value (CV), and total sulfur (TS) on an as-received (AR) basis. The analysis results show that seam A has the highest moisture content (19%), seam B exhibits the optimal calorific value (6045 kcal/kg), and seam C has the highest fixed carbon content (42.63%) with the highest sulfur content (0.83%). The correlation between parameters indicates that increases in moisture and ash content negatively affect the calorific value, while an increase in fixed carbon is positively correlated with the calorific value. All three seams fall into the category of low to medium rank coal (subbituminous to high volatile bituminous) with adequate quality for power generation and industrial purposes. This research provides an important contribution to the characterization of Muara Enim Formation coal in South Sumatra for the optimization of local coal resource utilization.

Educational transformation in the era of globalization and the Industrial Revolution 4.0 requires educational institutions not only to produce academically competent graduates but also individuals with entrepreneurial spirit, creativity, and adaptability. The high rate of educated unemployment indicates the need for alternative approaches, one of which is the implementation of an edupreneurial business model. This concept integrates entrepreneurial principles into educational management, emphasizing innovation, value creation, and sustainability. This study analyzes the application of business models in edupreneurship within formal educational institutions, covering conventional, digital, and social models. The findings indicate that edupreneurship enhances educational relevance, expands accessibility, and supports financial independence of institutions. Social edupreneurship is considered effective in promoting educational equity through socially impactful business models. The success of implementing an edupreneurial business model depends on continuous innovation, technological utilization, strategic partnerships, and diversification of funding sources. Therefore, edupreneurship is recommended as a visionary, adaptive, and sustainable strategy for educational transformation.

The management of Material Safety Data Sheets (MSDS) at PT Phapros Tbk still faces obstacles in the form of difficult document access, numerous files scattered across several folders, and MSDS presented in English that is difficult for workers to understand. This condition has the potential to hinder understanding of chemical safety information in the work environment. This activity aims to develop a digital innovation in the form of the QR-Safe system to facilitate access and improve workers' understanding of basic MSDS information. The implementation methods include identifying problems through observation and interviews, developing a simplified MSDS summary template consisting of five main sections, creating QR codes for each chemical, and socializing the use of this innovation to employees. The results of the activity show that QR-Safe and the MSDS summary are able to speed up document searches, present safety information more concisely, and make it easier for workers to understand hazard identification, handling procedures, and the use of personal protective equipment. This innovation also contributes to improving the effectiveness of Occupational Safety and Health (OSH) in companies. The digitization of MSDS through the QR-Safe digital innovation is highly effective in improving workers' accessibility to and understanding of chemical safety information.

Rapid infrastructure development in Indonesia poses significant environmental risks, necessitating effective control instruments like the Environmental Impact Assessment (AMDAL). This study analyzes the strategic role of AMDAL in supporting the achievement of Sustainable Development Goals (SDGs), particularly regarding water security, sustainable cities, climate action, and ecosystem conservation. Using a qualitative method with a literature review approach, this research evaluates regulations and academic sources from 2020 to 2025. The findings reveal that AMDAL serves as a critical preventive tool that aligns industrial activities with SDG 6, SDG 11, SDG 13, SDG 14, and SDG 15 through the internalization of ecological costs and strict mitigation hierarchies. Furthermore, AMDAL functions as an essential baseline data source for government monitoring. However, the study identifies substantial barriers to implementation, including a deficit in meaningful public participation, weak law enforcement that renders AMDAL a mere administrative formality, and regulatory dynamics post-Job Creation Law (UUCK) which shifted to a risk-based approach. The study concludes that while AMDAL is theoretically robust as a safeguard for sustainability, its practical implementation requires strengthening in transparency and supervision to effectively bridge economic interests with ecological preservation.

Magang Industri (KPI) berfungsi sebagai media bagi siswa untuk menerapkan pengetahuan akademis ke dalam lingkungan kerja nyata, khususnya melalui keterlibatan dalam proses rekrutmen. Penelitian ini dilakukan di PT. Asri Dharma Sejahtera, sebuah perusahaan milik daerah di sektor minyak dan gas, di mana Divisi Sumber Daya Manusia memainkan peran strategis dalam mendukung operasi. Tujuan dari kegiatan ini adalah untuk mengidentifikasi tahapan rekrutmen dan mentransmisikan efektivitas metode yang diterapkan. Data dikumpulkan secara kualitatif melalui wawancara dengan staf SDM dan observasi langsung terhadap kegiatan rekrutmen. Hasil penelitian menunjukkan bahwa PT. ADS menerapkan proses rekrutmen yang sistematis, mulai dari perencanaan tenaga kerja, pengumuman lowongan pekerjaan, penyaringan aplikasi, tes, dan wawancara. Dua metode utama yang digunakan: bursa kerja dan platform dare, masing-masing dengan kelebihan dan keterbatasan yang berbeda. Bursa kerja efektif untuk interaksi pribadi dan merek pemberitaan kerja, sementara platform berani menawarkan jangkauan yang lebih luas dan efisiensi yang lebih besar. Kesimpulan menyimpulkan bahwa strategi rekrutmen hybrid mengoptimalkan kekuatan kedua metode, menghasilkan proses rekrutmen yang lebih efektif dan adaptif. Rekomendasi tersebut mencakup SOP pemeliharaan yang terperinci, penerapan sistem e-rekrutmen yang komprehensif, dan pelaksanaan evaluasi berkala guna meningkatkan transparansi, kualitas, dan daya saing perusahaan.

Zinc (Zn) is one of the most common heavy metal contaminants found in industrial wastewater and solid residues such as slag, electroplating waste, and metal ash. At excessive concentrations, Zn can cause environmental disturbances, including toxicity to aquatic organisms, disruption of microbial activity, and groundwater contamination. Long-term exposure may also lead to bioaccumulation and potential health risks to humans. This article presents a comprehensive literature review that discusses the chemical properties of Zn, its environmental behavior, and the development of recent treatment technologies within the last five years. Several techniques, including adsorption using modified or composite materials, biosorption utilizing microalgae and agricultural biomass, as well as solidification–stabilization with amendment agents such as biochar or iron-sulfide compounds, are evaluated and compared. The literature indicates that no single treatment method is universally effective for all waste types; therefore, hybrid or integrated treatment systems are considered more efficient and sustainable. Based on the reviewed evidence, this study proposes an engineering concept that emphasizes environmental safety, cost-effectiveness, and industrial applicability.

The development of digital technology has changed the paradigm of MSME businesses, including in building brand image. This study analyzes strategies for enhancing brand image through digital business at Ayam Celup Juaro’s MSMEs in Medan City. The research method uses a qualitative approach with a case study design. Data were collected through in-depth interviews, participatory observation, and documentation studies. The results show that multi-platform digital integration (Instagram, TikTok, WhatsApp) is effective in building brand image. Instagram serves as a medium for visual representation of the brand, TikTok as a driver for acquiring new customers through viral content, and WhatsApp as a means of personal communication to maintain customer loyalty. The key factors for success are content consistency and timely service. The main obstacles faced are budget constraints and challenges in maintaining content consistency. This research provides practical contributions for SMEs in developing integrated digital strategies to enhance brand image in the era of the 4th Industrial Revolution.

The purpose of this study is to analyze the influence of production, exports and investment on the GDP of the Manufacturing Sector in Indonesia. This study uses a descriptive quantitative approach with time series data 2017-2024, the data used is secondary data taken by GAIKINDO (Association of Indonesian Automotive Industries) and the National Statistics Agency with multiple linear regression analysis techniques interpreted using Eviews 13. The results of the T-test study on the production, export and investment variables have no significant effect. However, the results of the F-test of the production, export and investment variables have a simultaneous effect on the GDP of the Indonesian Manufacturing Sector. From the results of the determinant test (R2) the independent variable is 85%, while the remaining 15% is influenced by other variables from this study.

Industri portal lowongan kerja daring mengalami persaingan ketat, menuntut platform seperti Toploker.com untuk membangun brand awareness yang kuat, di mana iklan video menjadi strategi promosi yang sangat efektif. Namun, produksi video konvensional menghadapi kendala biaya tinggi dan waktu pengerjaan yang lama. Kecerdasan Buatan (AI) menawarkan solusi dengan mengotomasi produksi konten, mulai dari penyusunan naskah hingga personalisasi audio-visual. Penelitian empiris menunjukkan bahwa iklan video berbasis AI dapat meningkatkan tingkat engagement hingga 6–9 persen poin lebih tinggi dibandingkan iklan baseline dan meningkatkan efektivitas persuasi hingga 12,5% lebih tinggi dalam hal ekspektasi pendapatan. Untuk memastikan proses pengembangan konten video promosi yang menarik, efisien, dan relevan bagi audiens digital Generasi Z, penelitian ini mengadopsi kerangka kerja Multimedia Development Life Cycle (MDLC), yang mencakup tahap Konsep, Perancangan, Pengumpulan Bahan, Produksi, Pengujian, dan Distribusi. Tujuannya adalah merancang panduan teknis yang terstruktur untuk mengintegrasikan alat AI modern (seperti CapCut, Suno AI, dan Freepik AI) demi mengoptimalkan kualitas dan efisiensi produksi konten.

The issue of inorganic waste such as plastic and used paper in industrial environments remains an important issue that affects the cleanliness and aesthetics of work areas. PT Pertamina Patra Niaga Fuel Terminal Rewulu faces challenges in managing non-hazardous solid waste due to limited sorting systems and waste transportation frequency. This Community Service activity aims to improve workers' understanding and skills through socialization and training in making ecobricks as a solution for utilizing inorganic waste. The methods used include pre-activity stages, socialization and hands-on practice, and evaluation through pre-tests and post-tests. The results of the activity showed a significant increase in participants' knowledge after the training, proving the effectiveness of interactive methods in strengthening understanding of the 3R (Reduce, Reuse, Recycle) concept. In addition to reducing waste volume, this activity also fostered awareness and participation among workers in creating a clean and sustainable work environment. The results of this community service are important as a first step in building a culture of independent waste management in industrial environments and can be replicated in other locations with a similar approach. Keywords: Implementation of Pancasila values, bullying prevention, character education, primary school, SDN 1 Jatisela, school environment, student behaviour.

The growth in the number of vehicles in Surabaya has led to increased traffic congestion, particularly on the Perak Timur–Perak Barat road section, which serves as a major distribution route to the port and industrial areas. Problems arise at U-Turn points, where vehicle accumulation hampers traffic flow. This study analyzes traffic volume, travel time, queue length, and queue ratio at two U-Turn points on this section. The method used was a field survey with direct observation of vehicle volume every 15 minutes, vehicle classification, and queue length. Traffic volume was calculated using the Passenger Car Equivalent (PCE) factor based on the 1997 MKJI standards. The study results show that at Point 1, east–west direction, the highest queue ratio occurred on Tuesday from 11:00 to 12:00 (p = 4.84), while the lowest was on Sunday from 06:00 to 07:00 (p = 0.21). At Point 2, west–east direction, the highest queue ratio occurred on Tuesday from 08:00 to 09:00 (p = 6.18), and the lowest from 06:00 to 07:00 (p = 0.41). These findings indicate that during peak hours, traffic congestion increases (p > 1), causing long queues, particularly in the west–east direction in the morning. The performance of the U-Turn on the Perak Timur–Perak Barat road section needs improvement, with recommendations such as temporarily closing U-Turns during high volumes, providing alternative U-Turn lanes, and adding signs to minimize the potential for vehicle conflicts.

This study discusses allegations of abuse of dominant position by Lion Air Group in the domestic aviation market and air cargo services in Indonesia. By controlling more than 50% of the market share, the group is suspected of unilaterally setting ticket prices and logistics costs, which could hinder healthy business competition and harm consumers and competing airlines. This study uses a normative juridical approach with a descriptive qualitative analysis method, supported by secondary data from legislation, KPPU reports, and academic literature related to competition law. The study's findings indicate that the concentrated market structure and weak regulatory oversight contribute to the formation of dominant behavior that harms the market and consumers. Legally, such actions violate Article 25 of Law Number 5 of 1999, as they result in discriminatory practices and unreasonable price control. Synergy between the KPPU and the Ministry of Transportation is needed to strengthen regulations in the aviation sector in order to create a business climate that is more fair, competitive, and oriented towards public welfare.

The study aims to improve the passion fruit syrup production system at Harisma Home Industry, which has been hindered by an inefficient facility layout and complicated raw material flow. These issues lead to longer processing time, higher operator workload, and reduced production capacity. To solve this, the research uses the Activity Relationship Chart (ARC) and Total Closeness Rating (TCR) to evaluate and redesign the layout. TCR results show that the Raw Material Warehouse has the highest priority with a score of 119, requiring an Absolutely Important (A) relationship with the Production Room. The Parking Area and Waiting Room also fall into the Absolutely Important category, as they support smooth movements of materials and visitors. Meanwhile, the Toilet has a Very Important (E) relationship with the Waiting Room due to comfort and accessibility needs. Based on these proximity requirements, a new layout was designed by placing the Raw Material Warehouse next to the Production Room to create a faster and more efficient material flow. Other facilities were rearranged to minimize unnecessary movement. This new layout is expected to streamline processes, reduce congestion, and enhance overall capacity and operational performance.

Ironing activities in the laundry service industry are performed repeatedly and for long periods, creating a high potential for non-ergonomic work postures. At Laundry Cio’ta, ironing is carried out every day from 08:00 to 21:00 by two workers, which increases the risk of fatigue and musculoskeletal disorders due to continuous and repetitive movements. This study aims to analyze workers’ ironing postures using the REBA method to determine the level of ergonomic risk. Data were collected through direct observation and measurement of body posture angles during the ironing process. The assessment results showed a Score A of 4 and a Score B of 2, producing an initial REBA score of 4. With the addition of an activity score of +1, considering the repetitive nature of the task, the final REBA score increased to 5. This score indicates a moderate level of risk, suggesting that corrective actions are necessary to prevent long-term strain or injury. Based on these findings, ergonomic improvements such as adjusting the ironing table height, modifying the work layout, and encouraging workers to adopt better posture are recommended. Implementing short rest breaks and task variation can also help reduce physical strain and improve worker comfort and productivity.