Thonglard, P., K. MeeKun, S. Nirantawe, and A. Whattananarong. “Professional Competency Development for Teachers: Professional Competency Development for Teachers”. RATANABUTH JOURNAL, vol. 7, no. 1, Apr. 2025, pp. 476-90, https://so07.tci-thaijo.org/index.php/rtnb/article/view/6428.