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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Sinergi Proceeding of the Electrical Engineering Computer Science and Informatics Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Journal of Humanities and Social Studies Jurnal Muara Ilmu Ekonomi dan Bisnis Dinasti International Journal of Education Management and Social Science Jurnal Ilmiah Manajemen Kesatuan Journal of Industrial Engineering & Management Research (JIEMAR) Kontigensi: Jurnal Ilmiah Manajemen International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Jurnal Teknik : Majalah Ilmiah Fakultas Teknik Unpak SAINSTECH: Jurnal Penelitian dan Pengkajian Sains dan Teknologi Managere: Indonesian Journal of Educational Management Jurnal Pustaka Indonesia Pedagogic Research - Applied Literacy Journal Journal of Language and Literature Education (JoLaLE) International Journal of Technology and Education Research International Journal of Educational Research Candradimuka: Journal of Education Journal of Management Indonesian Journal of Applied Environmental Studies
Didik Notosudjono
Universitas Pakuan Bogor
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences Transportation Other

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ANALISIS PENINGKATAN GAS METANA (CH4) PADA DIGESTER PORTABEL DENGAN KOTORAN SAPI SEBAGAI SUMBER ENERGI BIOGAS BERBASIS INTERNET OF THINGS (IoT) DIDIK NOTOSUDJONO, dan KIKI BAEHAKI, HASTO SOEBAGIA,
Jurnal Teknik | Majalah Ilmiah Fakultas Teknik UNPAK Vol 22, No 1 (2021): Jurnal Teknik : Majalah Ilmiah Fakultas Teknik UNPAK
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/teknik.v22i1.3734

Abstract

Biogas adalah salah satu energi bahan bakar gas yang diperoleh dari degradasi anaerobik bahan-bahan organik oleh bakteri dalam lingkungan bebas oksigen. Digester portabel ini mampu menghasilkan biogas yang utamanya mengandung gas metana (CH4) dan gas ikutan lainnya. Proses pembentukan biogas khususnya gas metana pada digester dimonitor dengan sensor gas metana secara real time berbasis Internet of Things (IoT). Hasil pengukuran konsentrasi gas metana yang dilakukan selama 38 hari pada temperatur rata-rata 37,46°C, nilai konsentrasi terus meningkat sampai dengan hari ke 29, dengan konsentrasi gas sebesar 170.564,02 ppm atau persentase gas sebesar 71,07%. Pada hari ke 29 gas metana dalam digester sudah layak dimanfaatkan, dan untuk menjaga kontinyuitas produksi gas metana, setiap hari bahan baku biogas perlu ditambahkan ke digester sesuai kapasitas. Kata Kunci : Biogas, Digester.
EVALUATION OF READING PARK MANAGEMENT BASED ON THE CIPP MODEL IN INCREASING CHILDREN'S INTEREST IN READING Syarifudin Yunus; Didik Notosudjono; Martinus Tukiran
Pedagogic Research-Applied Literacy Journal Vol. 1 No. 4 (2024): Volume 1 Number 4 August-October 2024
Publisher : Suluh Adiluhung Publisher (SAPub)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70574/jsfnpd57

Abstract

Reading parks play an important role in increasing children's interest in reading. This study aims to measure the effectiveness of reading park management in Bogor Regency, using the CIPP (Context, Input, Process, Product) model qualitatively. The instruments used include document studies, interviews, questionnaires, observations, and focus group discussions. Data analysis is an interactive analysis that is presented in its entirety. The results of the study describe that the evaluation of the context component is classified as good with a score of 4.03, the input component is sufficient - 3.29, the process component is sufficient - 3.40, and the product component is sufficient - 3.55. It is concluded that the evaluation of the management of reading parks in Bogor Regency is classified as "quite effective", with an average score of 3.56. There are three challenges faced by reading parks, namely 1) minimal government attention, 2) low public awareness, and 3) a small collection of books. The management of reading parks must ensure that there are readers, books, and commitment from the managers. So that reading parks can increase children's interest in reading, in addition to being a catalyst for improving the quality of human resources to boost Indonesia's Human Development Index (HDI).
Improving service quality and commitment to the profession through strengthening Organizational Citizenship Behavior (OCB), job satisfaction and self-efficacy Siti Utami, Ichwani; Notosudjono , Didik; Sunaryo , Widodo
International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Vol 6 No 3 (2024)
Publisher : The Islamic Education and Multiculturalism Foundation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47006/ijierm.v6i3.377

Abstract

Abstract : This study aims to analyze the improvement of service quality and commitment to the profession through strengthening Organizational Citizenship Behavior (OCB), job satisfaction, and self-efficacy. Optimal service quality and commitment to the profession are key factors in improving organizational performance, especially in the public service and education sectors. OCB as an extra-role behavior carried out voluntarily by employees is expected to be a driving factor in improving service quality and commitment to the profession. In addition, high job satisfaction and strong self-efficacy also play an important role in strengthening OCB. This study uses a quantitative approach with a survey method on employees in the public service sector. The results of the study indicate that OCB, job satisfaction, and self-efficacy significantly contribute to improving service quality and commitment to the profession. The implications of this study are expected to provide insight for organizational management in developing performance improvement strategies by strengthening these factors.
Analysis The Effectiveness of Reading Park Management in Increasing Reading Interest in Bogor Regency Syarifudin Yunus; Didik Notosudjono; Martinus Tukiran
International Journal of Educational Research Vol. 1 No. 3 (2024): September : International Journal of Educational Research
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijer.v1i3.52

Abstract

Community reading parks have a role in increasing reading interest. This study measures the level of effectiveness of reading park governance, with the CIPP ( Context, Input, Process, Product ) model qualitatively. The instruments used include document studies, interviews, questionnaires, observations, and focus group discussions . Data analysis is analytical in nature. interactive. It can be concluded that the level of effectiveness of the management of reading parks in increasing public interest in reading is classified as "sufficient", with a score of 3.56 . The budget is the main obstacle for reading parks, in addition to policy implementation and human resources. The source of funds for reading parks, it turns out, is 75% from own funds, while the book collection of less than 3,000 books reaches 85%. Therefore, the management of reading parks must be further optimized.
Quantifying the Influence of Leadership Styles on Faculty Motivation and Academic Innovation in Higher Education Nur Haris Ependi; Didik Notosudjono; Eka Suhardi
Managere: Indonesian Journal of Educational Management Vol. 6 No. 2 (2024)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52627/managere.v6i2.540

Abstract

The research aims to produce strategies and ways to improve lecturers' creativity through efforts to identify the magnitude of the direct and indirect influence of Transformational Leadership, Empowerment, Effectiveness and Utilization of ICT, and Work Motivation. This study uses a survey method and path analysis techniques, which are then subjected to SITOREM analysis. The population in the study amounted to 269 people, and a sample was taken randomly of 215 lecturers using the Taro Yamane formula. The results of the study prove that there is an influence of Transformational Leadership (by1 = 0.184), EmpowermentEmpowerment (by2 = 0.163), Effectiveness and Utilization of ICT (by3 = 0.275), and Work Motivation (by4 = 0.148) on Lecturer Creativity. SITOREM analysis proves that increasing creativity is done by improving weak indicators, namely the courage to take risks and work on complex things, developing or maintaining indicators of developing something new and different, providing problem-solving, and openness to new ideas. Transformational leadership is done by improving weak indicators, namely encouraging novelty, having charisma, having consideration, and providing inspiration. The implications of this research suggest that higher education institutions in Indonesia should prioritize the development of transformational leadership styles, empower faculty members, and invest in ICT tools to enhance work motivation, ultimately fostering a creative and innovative academic environment.
Strategies for Improving Teacher Service Quality Through Strengthening Organizational Citizenship Behavior (OCB), Interpersonal Communication, Organizational Climate, and Work Motivation Deden Iskandar; Didik Notosudjono; Rais Hidayat
International Journal of Technology and Education Research Vol. 3 No. 02 (2025): April - June, International Journal of Technology and Education Research (IJET
Publisher : International journal of technology and education research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63922/ijeter.v3i02.1773

Abstract

This study aims to formulate effective strategies for improving teacher service quality through a multi-factor approach, namely Organizational Citizenship Behavior (OCB), interpersonal communication, organizational climate, and work motivation. Teacher service quality is an important indicator in the continuous improvement of education quality. The research method used is a quantitative approach with an explanatory causal design. Data were collected through questionnaires administered to teachers from various educational levels and analyzed using path analysis techniques. The results of the study indicate that OCB, interpersonal communication, organizational climate, and work motivation significantly and simultaneously influence the improvement of teacher service quality. OCB acts as a mediating factor that strengthens the influence of other variables on service quality. The practical implications of these findings highlight the importance of strengthening organizational culture, interpersonal communication training, and reward and motivation systems to promote teacher professionalism. An integrative strategy based on strengthening organizational behavior and a humanistic approach is recommended as a model for improving teacher service quality in the Indonesian educational context.
The Effect of Organizational Climate and Self-Efficacy on Organizational Commitment with Job Satisfaction as a Mediating Variable: An Empirical Study on Employees in the Multifinance Industry in Jakarta Joko Ariawan; Didik Notosudjono; Widodo Sunaryo
Dinasti International Journal of Education Management and Social Science Vol. 7 No. 4 (2026): Dinasti International Journal of Education Management and Social Science (April
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijemss.v7i4.6364

Abstract

This study aims to examine the impact of Organizational Climate and Self-Efficacy on Organizational Commitment, with Job Satisfaction acting as a mediating variable. The research population consisted of 1,294 permanent employees in multifinance companies in Jakarta, with a sample of 248 selected through proportional random sampling. A mixed-methods approach was employed, combining quantitative analysis using Path Analysis with qualitative insights from the Delphi technique to gather expert input from human resource practitioners. The results indicate that Organizational Climate and Self-Efficacy positively and significantly influence Organizational Commitment directly. In addition, both variables also have positive and significant indirect effects on Organizational Commitment through Job Satisfaction, although the mediating role of Job Satisfaction was found to be less effective. The findings highlight that supportive supervision, employee confidence in competencies, and promotion opportunities are key aspects of Job Satisfaction that strengthen commitment. Based on these results, Human Resources policymakers are advised to prioritize strategies that enhance Organizational Climate through clear work structures and supervisory support, develop Self-Efficacy by increasing task confidence and scope, and improve Job Satisfaction via promotion opportunities, compensation, and effective supervision. These interventions are essential for sustaining employee performance and retention in the dynamic multifinance industry.
The Influence of Servant Leadership, Self-Efficacy, and Work Values on Teacher Engagement in Modern Education Fitriyani Fitriyani; Didik Notosudjono; Widodo Sunaryo
JPI: Jurnal Pustaka Indonesia Vol. 6 No. 1 (2026): January-April
Publisher : Yayasan Darussalam Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62159/jpi.v6i1.2284

Abstract

This study aims to analyze the influence of servant leadership, self-efficacy, and values on teacher engagement among public senior high school teachers with civil servant (ASN) status and private senior high school teachers with permanent foundation teacher (GTY) status in Bogor Regency. This research employed a quantitative approach using an ex-post facto and causal comparative design. The sample consisted of 255 teachers selected through multistage random sampling. Data were collected using questionnaires and analyzed using descriptive statistics, regression analysis, comparative analysis, and SITOREM analysis. The results showed that servant leadership, self-efficacy, and values had positive and significant effects on teacher engagement in both groups. Values emerged as the strongest predictor among ASN teachers, while self-efficacy was the dominant variable among GTY teachers. The findings also revealed differences in engagement characteristics between public and private school teachers, indicating that institutional context and employment status influence teachers’ psychological attachment and professional commitment. This study concludes that strengthening leadership practices, teachers’ self-efficacy, and organizational values is essential for improving teacher engagement and educational effectiveness.
Enhanced accuracy for classification modeling with a Decision Tree on rooftop solar PV Alfin Sahrin; Erna Utami; Ali Musyafa; Aris Suryadi; Didik Notosudjono; Andi Andriansyah
SINERGI Vol. 30 No. 2 (2026)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2026.2.017

Abstract

Rooftop photovoltaic (PV) systems play a crucial role in Indonesia’s decarbonization agenda; however, research on interpretable classification frameworks that integrate roof geometry and meteorological heterogeneity remains limited. Most previous studies have focused on module-level fault detection rather than assessing installation feasibility at the urban scale. Addressing this research gap, the present study proposes a transparent and data-driven approach using a Decision Tree (DT) model enhanced with Grid Search Cross-Validation (GSCV) to classify the feasibility of rooftop PV installations across 20 Indonesian capital cities. Simulation data generated by PVsyst incorporates multiple tilt and azimuth configurations, as well as local weather variables, representing one-, two-, and three-directional roof geometries. The proposed DT–GSCV model is benchmarked against k-NN, Gaussian Naïve Bayes, Logistic Regression, Random Forest, XGBoost, and CatBoost, demonstrating superior generalization and interpretability. Cross-location validation across five rotational subsets confirms stable performance, with an average accuracy of 91.0% ± 0.3 and an F1-score of 0.90, highlighting the model's robustness across diverse climatic zones. Feature importance and SHAP analyses reveal that irradiation and tilt angle are the most influential factors, while temperature and humidity negatively affect feasibility. The novelty of this work lies in developing a reproducible, interpretable machine learning framework that bridges physical PV modeling and data analytics for rooftop system design. This methodology enables rapid, transparent decision support for optimizing rooftop PV deployment across Indonesia's diverse urban and climatic settings.
Determinants of Clinical Instructor Service Quality in Healthcare Education: The Roles of Knowledge Management, Professional Commitment, Work Motivation, and Interpersonal Communication Mutiara Rizka Ahmad; Didik Notosudjono; Soewarto Hardhienata
Journal of Management Vol. 5 No. 1 (2026): January - June
Publisher : Yayasan Pendidikan Belajar Berdikari

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

Abstract

This study investigates the structural determinants of Clinical Instructor (CI) service quality in Indonesian healthcare education through an integrated mixed-methods design grounded in the POP-SDM (Pemodelan dan Optimasi Penguatan Sumber Daya Manajemen) framework. The research model positions knowledge management (X1) as the exogenous variable, professional commitment (X2), work motivation (X3), and interpersonal communication (X4) as intervening variables, and CI service quality (Y) as the endogenous variable. Employing a sequential exploratory design, qualitative inquiry (12 informants across 30 healthcare clinics in Bekasi City) was first used to identify and validate the causal constellation, followed by quantitative path analysis with a sample of 144 clinical instructors drawn via proportional random sampling. Instruments were based on SERVQUAL (service quality), and validated theoretical frameworks for each independent variable, all measured on five-point Likert scales. Data were analyzed using SPSS v.29 with prerequisite tests for normality, homogeneity, linearity, multicollinearity, and heteroscedasticity. Results confirmed ten significant hypotheses: all four variables exert direct positive effects on CI service quality—interpersonal communication (β = 0.234), work motivation (β = 0.212), knowledge management (β = 0.208), and professional commitment (β = 0.195). Knowledge management exerts strong direct effects on all three intervening variables: interpersonal communication (β = 0.771), work motivation (β = 0.737), and professional commitment (β = 0.655). Three significant indirect paths from knowledge management to service quality were confirmed via Sobel test, with interpersonal communication yielding the strongest indirect effect (β = 0.163), followed by work motivation (β = 0.144) and professional commitment (β = 0.136). However, all three intervening variables function as partial rather than full mediators, since direct effects exceed indirect effects. SITOREM analysis identified 18 priority indicators for improvement across all variables. Findings provide a validated causal model with actionable optimization recommendations for clinical education policy and practice in Indonesia.
Co-Authors Alfin Sahrin Ali Musyafa Andi Andriansyah Annisaa Soeyono Arief T. Hardiyanto Aris Suryadi Bagus Dwi Ramadhon Bagus Dwi Ramadhon Baskoro Abhi P Deden Iskandar Deden Iskandar Dolly Priatna Eka Suhardi Eko Pramono Engkos Engkos Erna Utami Fitriyani Fitriyani Fitriyani Fitriyani Geraldy Samuel Ivan Geraldy Samuel Ivan Giovanni Inez Erika Margaretha Giovanni Inez Erika Margaretha Hamzah Bustomi Hari Muharam Hendarman Hendro Sasongko Hwan-Ok Ma Imran Ali Irfan Aziz Joko Ariawan Kathryn A. Monk Martinus Tukiran Martinus Tukiran Martinus Tukiran Muhammad Sulhan Mutiara Rizka Ahmad Nur Haris Ependi Puja Subekti Rais Hidayat Rais Hidayat Ratu Erlina G, Rinsan Hutabarat Rita Retnowati Roosganda Elizabeth Roosganda Elizabeth Shujaul Mulk Khan Siti Utami, Ichwani Soewarto Hardhienata Suhendi, Dede Sunaryo , Widodo Syarifudin Yunus Tanti Ardianti Tatang Kukuh Wibawa Tita Miawati Widodo Sunaryo Widodo Sunaryo Widodo Sunaryo Widodo Sunaryo Yoshikazu Tatemoto