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International Journal of Advanced Multidisciplinary

IJAM
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Published by Green Publisher Indonesia

ISSN : 28296184 EISSN : 28296192 DOI : https://doi.org/10.38035/ijam.v1i1

Core Subject : Economy, Science, Education, Social,

Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences

International Journal of Advanced Multidisciplinary (IJAM) is an international, peer reviewed, open access, scientific and scholarly journal which publishes Research papers, Review papers, Mini reviews, Case reports, Case studies, Short communications, Letters, Editorials, Books, Thesis, Dissertation works, etc., from all the aspects of Agricultural Science, Biological Science, Business, Chemical Science, Education Science, Engineering and Technology, Humanities, Life Science, Physical Science, Marine Science, Social science. After publishing, articles are freely available through online without any restrictions or any other subscriptions to researchers and readers worldwide.

Arjuna Subject : Umum - Umum

Articles 294 Documents

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Extraction and GCMS Characterization of Chlorella vulgaris Microalgal Oil Using n-Hexane Assisted Dissolution Method Nur Aminah Rambe; Irvan Irvan; Bambang Trisakti
International Journal of Advanced Multidisciplinary Vol. 5 No. 1 (2026): International Journal of Advanced Multidisciplinary (April - June 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i1.2190

Microalgae-based biodiesel has emerged as a promising third-generation biofuel feedstock, yet efficient downstream lipid recovery remains a critical bottleneck. This study investigated the effectiveness of n-hexane-assisted dissolution in improving the recovery and homogeneity of microalgal oil extracted from Chlorella vulgaris biomass, and characterized the fatty acid methyl ester (FAME) composition of the recovered oil using Gas Chromatography-Mass Spectrometry (GC-MS). Two dissolution methods were evaluated: direct dissolution (Variation 1) and n-hexane-assisted dissolution (Variation 2), each at volumetric ratios of 1:4 and 1:2 (v/v). GC-MS analysis of the base microalgal oil identified nine FAME compounds with carbon chain lengths ranging from C15 to C21, with methyl nonadecanoate (C₁₉H₃₈O₂) as the dominant constituent at 50.63% of the total chromatographic area and a total methyl ester content of 93.23%. In Variation 1, total methyl ester content reached 67.41% (Sample A) and 80.70% (Sample B), with sediment formation observed in both samples. In contrast, Variation 2 achieved markedly higher total methyl ester contents of 98.40% (Sample 1) and 98.25% (Sample 2), with no sediment detected, indicating superior lipid dispersion and product homogeneity. The predominance of C17–C19 fatty acid methyl esters across all samples confirms the suitability of Chlorella vulgaris oil as a renewable biofuel feedstock. These results demonstrate that n-hexane-assisted dissolution is an effective strategy for enhancing microalgal oil recovery and highlight the critical role of solvent selection in downstream lipid processing for microalgae-based biofuel production.

The Effect of Training and Competence on Employee Performance With Work Motivation As A Mediation Variable At Bank Negara Indonesia, Jambi Branch T. Maharani Feriska; M. Zahari; Ali Akbar
International Journal of Advanced Multidisciplinary Vol. 5 No. 1 (2026): International Journal of Advanced Multidisciplinary (April - June 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i1.2200

Facing the increasingly competitive banking industry, organizations are required to improve the quality of their human resources through effective training, competency development, and increased work motivation to achieve optimal performance. This study aims to analyze the effect of training and competency on employee performance, with work motivation as a mediating variable, at Bank Negara Indonesia's Jambi Branch. This study used a quantitative approach with a survey method. The population in this study was all 76 employees of Bank Negara Indonesia's Jambi Branch. Given the relatively small population, the entire population was used as the research sample. Data collection was conducted through questionnaires using a Likert scale. Data analysis used Structural Equation Modeling-Partial Least Squares (SEM-PLS). The results showed that training had a positive and significant effect on employee work motivation and performance. Competence had a positive and significant effect on employee work motivation and performance. Work motivation had a positive and significant effect on employee performance. Furthermore, work motivation was proven to mediate the effect of training and competency on employee performance. These findings indicate that improving the quality of employee training and competency can increase work motivation, which ultimately impacts employee performance.

What Keeps GoTo Competitive? Employee Perspectives on Agility and Human Capital Tengku Ahmad Helmi; Sri Yusriani; Muhammad Siddiq Idris Azzam; Endi Rekarti; Prasetyo Harisandi
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2205

What enables digital platform organizations to remain competitive in rapidly changing environments? This study investigates employee perspectives on human capital, organizational agility, and competitive advantage within GoTo’s digital ecosystem. Employing a qualitative design, Focus Group Discussions (FGDs) were conducted with employees from diverse functional backgrounds to explore their experiences regarding talent development, workplace adaptability, and organizational resilience. The findings indicate that continuous learning, digital capability enhancement, collaborative culture, and data-driven decision-making are perceived as key drivers of organizational competitiveness. Participants further highlighted that agile work practices and ecosystem-based partnerships support the organization’s ability to navigate uncertainty and sustain performance. The study suggests that human capital should be viewed not merely as an operational resource but as a strategic asset that shapes innovation, resilience, and long-term competitive advantage. The findings extend current discussions on strategic human resource management in digital platform organizations and offer practical implications for managers operating in dynamic business environments.

The Influence of Supervision and Discipline on Employee Performance Through Motivation at PT Bank Negara Indonesia (Persero) Tbk Jambi Branch Office Maya Siska Simarmata; Pantun Bukit; Fakhrul Rozi Yamali
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2209

This study aims to describe supervision, discipline, work motivation, and employee performance, as well as to analyze the direct and indirect effects of supervision and discipline on work motivation and employee performance through work motivation at PT Bank Negara Indonesia (Persero) Tbk Jambi Branch Office. This research employed descriptive and verification methods with a quantitative approach. The population consisted of all employees of PT Bank Negara Indonesia (Persero) Tbk Jambi Branch Office, totaling 62 employees. The census method was used, whereby all population members were selected as respondents. Data were collected through questionnaires and analyzed using Path Analysis with the assistance of SPSS software. The results showed that supervision, discipline, work motivation, and employee performance were categorized as good. Partially, supervision had a positive and significant effect on work motivation with a path coefficient of 0.471, while discipline had a positive and significant effect on work motivation with a path coefficient of 0.481. Simultaneously, supervision and discipline significantly affected work motivation with an F-value of 188.431 and a significance value of 0.000. Supervision had a positive and significant effect on employee performance with a path coefficient of 0.600, while discipline had a positive and significant effect on employee performance with a path coefficient of 0.357. Simultaneously, supervision and discipline significantly affected employee performance with an F-value of 209.082 and a significance value of 0.000. Work motivation had a positive and significant effect on employee performance with a path coefficient of 0.919 and a t-value of 18.084. The findings also indicate that work motivation serves as an intervening variable that mediates the effects of supervision and discipline on employee performance. Therefore, improving supervision and discipline can enhance employee motivation, which in turn contributes to better employee performance at PT Bank Negara Indonesia (Persero) Tbk Jambi Branch Office.

Strategic Oversight Effectiveness of the Board of Commissioners: Prioritizing Critical Business Challenges and Designing a Monitoring System at PT Pertamina Hulu Energi Ferry Firmansyah; Santi Novani
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2212

PT Pertamina Hulu Energi (PHE), Pertamina's Upstream Subholding, is facing strategic challenges owing to operations, commodity price volatility, and financial concerns. These circumstances compel that the Board of Commissioners concentrates its oversight on the most important business concerns affecting the company's profitability. This research analyzes and prioritizes PHE's important business concerns, as well as designing a targeted supervision framework. A sequential exploratory mixed-methods approach was employed, incorporating corporate document inspection, fourteen semi-structured interviews, thematic coding, and Best-Worst Method prioritizing with twelve respondents. The research discovered fifteen business issues and seven faults in the present oversight method. Impact appears to be the major factor, followed by urgency and probability. Four challenges were classified as Tier 1 priorities: mature field natural decline, asset integrity and unplanned shutdowns, post-investment review gap, and governance and Business Judgment Rule risk. The findings were translated into a Tiered BoC Oversight System consisting of a tiered work plan, monitoring toolkit, escalation and contingency protocol, enabling conditions, and integration with PHE’s existing BoC Oversight system namely SRAM, PRAM, and GOC architecture. The system sharpens, rather than replaces, the existing oversight architecture.

The Effect of Product Diversification on Purchase Intention Through Brand Trust, Perceived Value, and Customer Satisfaction in Premium Local Muslim Fashion Brands Nia Puspita Hapsari; Suhendar Sulaeman; Liza Nora; Daman Sudarman
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2231

This study examines the effect of product diversification on purchase intention through brand trust, perceived value, and customer satisfaction in premium local Muslim fashion brands. The Muslim fashion industry is growing as part of lifestyle, creative economy, and digital marketing, yet brand success is not determined solely by market size. This research used a quantitative survey of 250 consumers who had purchased or were interested in purchasing Muslim fashion products. Data were collected through a structured questionnaire using a five-point Likert scale and analyzed with Partial Least Squares Structural Equation Modeling using SmartPLS 4. The measurement model met convergent validity, discriminant validity, and reliability criteria. The structural model shows that product diversification significantly affects brand trust, perceived value, customer satisfaction, and purchase intention. Brand trust, perceived value, and customer satisfaction also significantly affect purchase intention, while brand trust strengthens perceived value. Mediation analysis confirms that perceived value, customer satisfaction, and brand trust partially mediate the relationship between product diversification and purchase intention, with customer satisfaction producing the strongest indirect effect.

The Effect of Leadership Styles and Organisational Culture on Organisational Commitment and Their Impact on The Performance of Staff at The Secretariat ff The Regional People’s Representative Council of Muaro Jambi Regency Sudirman Sudirman; Arna Suryani; Asikin Asikin; Muhammad Syukri; Ahmadi Ahmadi
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2257

Employee performance is a crucial factor in the success of public sector organizations. Although various studies have shown that leadership style and organizational culture influence employee performance, previous research findings have been inconsistent, particularly regarding the direct influence of leadership style on performance and the role of organizational commitment as a mediating variable. This study aims to analyze the influence of leadership style and organizational culture on employee performance through organizational commitment at the Muaro Jambi Regency DPRD Secretariat. The study employed a quantitative approach with a survey method through questionnaires distributed to employees. Data were analyzed using PLS-SEM to test the direct and indirect relationships between variables. The results showed that leadership style and organizational culture had a positive and significant effect on organizational commitment. Organizational culture and organizational commitment also had a positive and significant effect on employee performance. Conversely, leadership style did not have a significant direct effect on employee performance. However, organizational commitment was shown to mediate the influence of leadership style and organizational culture on employee performance. These findings indicate that improving employee performance is more effectively achieved through strengthening organizational culture and organizational commitment than through direct leadership style. The novelty of this research lies in the empirical evidence that organizational commitment acts as a mediating mechanism that explains why leadership style does not have a direct effect on employee performance in public sector organizations, especially in the Muaro Jambi Regency DPRD Secretariat.

The Influence of Burnout and Job Stress Through Job Satisfaction on Employee Engagement at PT. Kiki Ratu Intan Express Jambi Vincent Nathaniel Thalib; Arna Suryani; Sudirman Sudirman
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2262

This research is motivated by the declining number of employees at PT. Kiki Ratu Intan Express Jambi, which indicates low employee engagement, allegedly caused by burnout, job stress, and job satisfaction. The research gap in this study lies in the inconsistency of previous findings regarding the effect of burnout on job satisfaction, as well as the mediating role of job satisfaction in the relationship between burnout and job stress on employee engagement. This study aims to examine the effect of burnout and job stress on employee engagement, with job satisfaction as a mediating variable. The research method employs a quantitative approach with a saturated sample of 70 employees. Data analysis was conducted using SmartPLS. The results show that job stress and burnout significantly affect employee engagement, while job satisfaction mediates the effect of job stress on employee engagement but does not mediate the effect of burnout. The novelty of this research lies in the finding that burnout affects employee engagement directly without passing through job satisfaction, in contrast to job stress, whose effect is mediated by job satisfaction. The research model explains 79.4% of the variance in employee engagement. This study recommends stress management and burnout prevention as strategies to improve employee engagement.

The Effect of Perceived Price and Quality of Delivery on Repeat Purchase Intention among Shopee Users: The Mediating Roles of Perceived Value, Customer Satisfaction, and Customer Trust Luisa Maria Antónia Lim Godinho; Catur Sugiarto; Amina Sukma Dewi
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2290

The rapid growth of e-commerce in Indonesia has intensified competition among digital marketplaces, making consumer retention a critical concern for platforms such as Shopee. Previous studies have predominantly examined the relationship between price perceptions, delivery quality, and repurchase behavior in isolation, while limited empirical evidence exists that simultaneously integrates perceived value, customer satisfaction, and customer trust as mediating mechanisms. This study aims to examine the effect of perceived price and quality of delivery on repeat purchase intention among Shopee users and to analyze the mediating roles of perceived value, customer satisfaction, and customer trust. The study employed a quantitative approach with 294 Shopee users as respondents. Data were collected through a structured questionnaire using a five-point Likert scale and analyzed using Partial Least Squares Structural Equation Modeling with SmartPLS version 4 software. The results indicate that respondents generally have positive perceptions of Shopee regarding perceived price, quality of delivery, perceived value, and customer satisfaction. The measurement model confirms adequate reliability and convergent validity. The novelty lies in simultaneously integrating three mediating variables within a single framework.

Analysis of an IoT-Based Energy Management System to Optimize Solar Power Plant Operations in Smart Buildings Mulyasmi Mulyasmi; Abdul Multi; Abdul Rosyid
International Journal of Advanced Multidisciplinary Vol. 5 No. 2 (2026): International Journal of Advanced Multidisciplinary (July - September 2026)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v5i2.2272

The increasing electricity consumption in modern buildings has driven the implementation of Internet of Things (IoT)-based photovoltaic (PV) systems as part of the smart building concept to enhance energy management efficiency and operational reliability. This study aims to analyze the performance of an IoT-based PV system in conducting real-time monitoring and data transmission, as well as to evaluate the influence of operational parameters on system performance. The proposed system consists of six PV modules with a total capacity of 1.5 kWp, a 1 kW inverter, voltage, current, and temperature sensors, and a NodeMCU ESP8266 for data acquisition and IoT-based communication. Measurement data are transmitted to a cloud platform every five seconds and displayed on a real-time monitoring dashboard. The results demonstrate that the implementation of the IoT-based PV system improves energy management efficiency, accelerates fault detection, reduces maintenance costs, and supports the development of sustainable smart buildings. Furthermore, the proposed monitoring model offers opportunities for future enhancement through the integration of Artificial Intelligence (AI), predictive maintenance, weather forecasting, and Building Management Systems (BMS).

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Home Page

OAI Link

Editorial Team

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Contact Name Greenation Publisher

Contact Email greenation.info@gmail.com

Phone +6281188062005

Journal Mail Official greenation.info@gmail.com

Editorial Address Jl. Kapt. A. Hasan, Telanaipura Jambi

Location Unknown, Unknown INDONESIA

Abstract

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Contact Name
Greenation Publisher

Contact Email
greenation.info@gmail.com

Phone
+6281188062005

Journal Mail Official
greenation.info@gmail.com

Editorial Address
Jl. Kapt. A. Hasan, Telanaipura Jambi

Location
Unknown,

Unknown

INDONESIA