Hidayat, Agus Sofian Eka, and Gilang Primajati. “Estimating and Forecasting Jakarta Composite Index in Pandemic Era Using ARIMA-GARCH Model”. Jurnal Varian 7, no. 2 (June 30, 2024): 115 - 126. Accessed November 23, 2024. https://journal.universitasbumigora.ac.id/index.php/Varian/article/view/2103.