Choompol, Atchara, and Mongkol Saensuk. “Features Elimination for Opinion Classification on Social Networks using Vertical Data Format”. Journal of Engineering and Industrial Technology, Kalasin University 1, no. 3 (June 29, 2023): 38–45. accessed October 6, 2026. https://ph03.tci-thaijo.org/index.php/JEIT/article/view/614.