Fitriyah AT, Chamidah N, Saifudin T. COMPARISON OF LEAST SQUARE SPLINE AND ARIMA MODELS FOR PREDICTING INDONESIA COMPOSITE INDEX. BAREKENG: J. Math. & App. [Internet]. 1Jul.2025 [cited 27Jul.2025];19(3):2169-78. Available from: https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/17363