W. H. Chu and S. Saharan, “Analysis of Financial Market in Malaysia Using ARCH and GARCH-Type Model”, EKST, vol. 4, no. 2, pp. 212–222, Dec. 2024, Accessed: Aug. 15, 2026. [Online]. Available: https://periodical.uthm.edu.my/index.php/ekst/article/view/14144