Farida F, Makaje N, Phon-On A. A Simplified Approach to Estimating Parameter of the GARCH (1,1) Model. Applied Science and Engineering Progress [Internet]. 2019 Aug. 22 [cited 2024 May 17];12(3):158-63. Available from: https://ph02.tci-thaijo.org/index.php/ijast/article/view/210875