Vol. 22 No. 3 (2026): May 2026

Research Articles

• Hyper-Wiener and Harary Indices of The Line Graph of Zero Divisor Graph For Integer Modulo Ring

  Fariz Maulana, I Gede Adhitya Wisnu Wardhana

  540-545

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• Value-at-Risk Analysis of PT Bukit Asam Tbk (PTBA) Stock Returns Based on an ARIMA–GARCH Model with a Student-t Distribution

  Najwa Khoir Aldawiyah, Indana Zulfa Wulandari, Ahmad Wahyu Firmanda, M. Fariz Fadillah Mardianto

  546-559

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• Development of the X-ROOT Learning Medium on Exponents in Grade VIII

  Nur Lailatul Rahmah, Faridah Siti

  560-572

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• Association Between Smartphone Use and Insomnia Incidence in Youth: A Meta-Analysis

  Rezza Debby Kurniawan, Murni Muhzal, Anggy Yulistya Putri, Caecilia Bintang Girik Allo, Dina Jumiatul Fitri

  573-586

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• Sustainable Stock Screening Based on Fundamental and Technical Indicators using Gaussian Naive Bayes Classifier

  Risky Gunawan, Cinta Priscillia Maharani, Gita Fitriyana, Dwi Indah Maharani

  587-601

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• Analysis of the Effects of Light Emitting Diode (LED) Phototherapy on the Hematological and Biochemical Parameters of Rabbits Using Repeated Measures Longitudinal ANOVA

  Dita Amelia, Suliyanto Suliyanto, Anisah Nabilah Ghasani, Nike Meliana Rahmawati, Dwi Syarifatun Nisya’, Dinda Rahma Alya

  602-616

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• Breast Cancer Classification Model Using Decision Tree Algorithm

  Nuzla Af'idatur Robbaniyyah, Ismi Asmawati, Syamsul Bahri

  617-626

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• Traffic Lights for a Five-Arm Intersection Using Petri Net Models

  Tomi Tristono, Setiyo Daru Cahyono, Sukadi Sukadi, Joko Triono, Seno Aji, Sudarno Sudarno, Mochamad Sidqon

  627-638

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• Statistical Downscaling Using the Kibria–Lukman Regression with Dummy Variables for Rainfall Forecasting

  Sitti Sahriman, Syamsuddin Toaha, Anisa Kalondeng, M. Zaky Hisyam Gozhi, Aidul Fitri Mustamin

  627-654

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• Unveiling Eco-Epidemiological Risk Assessment through Bayesian Spatio-Temporal SPDE-INLA Approach

  Mukhsar Mukhsar, Ida Usman, Asrul Sani, La Gubu, Muzuni Muzuni, Ruslan Majid, I Putu Sudayasa, Fahmiati Fahmiati

  655-670

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• Optimal Portfolio Formation Using a Combination of Genetic Algorithms and Particle Swarm Optimization Based on Cluster Analysis

  Irfan N. Amiruddin, Edy S. Rusdy

  671-685

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• Stability and Bifurcation Analysis of a Bird Flu Model with Vaccination in Poultry Farm

  arrival rince putri, Bala Muhammad Muhammad, Mahdhivan Syafwan

  686-699

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• Cox Weibull Regression Modeling for Graduation Rate Analysis of Statistics Students at Mulawarman University

  Suyitno Suyitno, Azkadiaannzumi Azkadiaannzumi, Darnah Darnah

  700-716

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• Rupiah Exchange Rate Forecast Against the United States Dollar Using the Singular Spectrum Analysis Method

  Mutiara Qalbu, Etik Zukhronah, Irwan Susanto

  717-729

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• Determination of Joint Life Term Insurance Premium Reserves Using the Prospective Method Based on the Cox-Ingersoll-Ross (CIR) Stochastic Interest Rate Model

  Prihatin Sihotang, Siska Yosmar, Septri Damayanti

  730-742

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• Generalization of Viviani’s Theorem Using a Complex Number Approach on Regular Polygons Inscribed in the Unit Circle

  Zulfatra Lamuda, Asriadi Asriadi

  743-760

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• Optimizing Cluster Centroids using Hybrid Firefly-Genetic Algorithm for Village Development Clustering

  Annisa Rahma, Rani Nooraeni, Raditya Hizra

  761-780

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• Statistical Process Control And Capability Analysis of Mechanical Component Dimensions with Operator Factor

  Angelica Carolina Tambunan, Rut Remita Assianna g Situmoran

  781-794

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