Nugroho, Didit Budi, Melina Tito Wijaya, and Hanna Arini Parhusip. “Modeling and Estimating GARCH-X and Realized GARCH Using ARWM and GRG Methods”. (IJCSAM) International Journal of Computing Science and Applied Mathematics 11, no. 1 (December 2, 2025): 14–20. Accessed January 30, 2026. https://journal.its.ac.id/index.php/ijcsam/article/view/4309.