หวานคง อรรชนิดา. “English Teaching in the 21st Century”. Journal of Yanasangvorn Research Institute Mahamakut Buddhist University 7, no. 2 (December 24, 2016): 303–314. accessed September 15, 2026. https://so04.tci-thaijo.org/index.php/yri/article/view/184935.