Vol. 22 No. 1 (2025): SEPTEMBER 2025

Research Articles

• Forecasting Rice Prices in Gorontalo Province Using Hybrid Singular Spectrum Analysis (SSA) and Triple Exponential Smoothing Methods (TES)

  Lisnawati R. Hunowu, Ismail Djakaria, Armayani Arsal

  1-15

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• Connectivity Indices of Coprime Graphs over Generalized Quaternion Groups of a Certain Order

  Arif Munandar, Aulia Tiffany Rizki

  16-27

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• D-Optimal Design with Split Plot Approach for Quadratic Mixture-Amount Experiments (Case Study of Three Components with Composition Constraints)

  A.Muthiah Nur Angriany, Raupong Raupong

  28-42

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• On Convergence in Norm of Functions in L^p Spaces by Convolution Using Dilation Kernel

  Elin Herlinawati

  43-47

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• Numerical Simulation and Convergence of Variational Iteration Method on Kuramoto-Sivashinsky Equation

  Rohmatul Ulya, Nuzla Af’idatur Robbaniyyah, Muhammad Rijal Alfian

  48-60

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• Binary Logistic Regression Analysis of Quarter-Life Crisis Symptoms on Sleep Difficulties in Early Indonesian Adulthood

  Dita Puspita Handayani, Kismiantini Kismiantini

  61-77

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• Comparison Of FCM And FKNN Methods For Clustering Provinces In Indonesia Based On People's Welfare Indicators

  Maghfiroh firoh, Tony Yulianto, Faisol Faisol

  78-89

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• Comparison of Basic Statistics and Machine Learning Classification Algorithms in Kalimantan Poverty Prediction with Handling Missing Data

  Khusnia Nurul Khikmah, A'yunin Sofro

  90-101

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• Computing The First Zagreb Index, The Wiener Index and The Gutman Index of The Power of Dihedral Group Using Python

  bulqis nebulla syechah, Mutiara Aeqi Permata Prasetyo, Ni Luh Dewi Sintiari, Gede Adhitya Wisnu Wardhana

  102-113

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• Topological Index of Coprima Graph of Integers Group Modulo with Order of Prime Power

  Sefti Fajriatul Musyarrofah, Na'imah Hijriati, I Gede Adhitya Wisnu Wardhana

  114-121

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• Multiresponse Nonparametric Regression Model with Mixed Estimator of Truncated Spline and Kernel for Poverty Indicators Analysis in Nusa Tenggara

  Aris Aswadi, I Nyoman Budiantara, Ismaini Zain

  122-138

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• Fibonacci Prime Labelling on the Class of Flower Graphs

  Desi Rahmadani, Afie Ahmadani, Tjang Daniel Chandra, Mochammad Hafiizh

  139-148

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• A Study of Noetherian and Artinian (R,S)-Modules

  Dian Ariesta Yuwaningsih, Yassin Dwi Cahyo, Gusti Ayu Dwi Yanti, Rima Aksen Cahdriyana, Dea Apriani

  149-158

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• Survival Analysis of Chronic Kidney Disease (CKD) Patients Undergoing Hemodialysis at RSUD Ratu Zalecha Martapura

  Nasywa Nabilah Azzahro, Dewi Anggraini

  159-177

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• Prime Labeling of Special Graph Classes Constructed from Dutch Windmill Graphs

  Jayanti Anggraini Putri Lestari, Desi Rahmadani

  178-186

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• Optimization of Stock Portfolio Investment based on K-Means Clustering using Markowitz Method (A case study: IDX-MES BUMN17 Index)

  Muhammad Rifki Nisardi, Restu Ananda Putra, Sri Muslihah Bakhtiar, Hartina Husain, Wahyuni Ekasasmita

  187-198

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• A Comparison of the Holt-Winters Additive and Multiplicative Methods with Grid search Optimization in Forecasting Red Chili Prices in Bengkulu City

  Jose Rizal, Ressy Fitrizka Haryanti, Winalia Agwil

  199-218

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• Estimating Reinsurance Premiums Using Pareto Conjugate Priors and Extreme Value Methods: Studies Case of Fire Insurance Claims in Denmark

  Putri Isnaini Cahyaning Baiti, Adhitya Ronnie Effendie

  219-231

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• Parameter Estimation of Zero Inflated Bivariate Ordered Probit Model with Berndt, Hall, Hall, and Hausman Iteration Approach

  Andriano Andriano, Purhadi, Ismaini Zain

  232-242

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• Fuzzy Time Series Saxena Easo on Forecasting the Number of Dengue Hemorrhagic Fever Cases in Bengkulu Province

  Septri Damayanti, Siska Yosmar, Nurul Hidayati, Ratna Widayati, Bunga Aulya Warrahma

  243-255

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