Ketudomsap , B. ., S. Pongpinyoopas, and R. Nitakorn. “Strategies for Developing Competency in the Field of Teachers in Schools Under the Office of Primary Educational Service Area, Tak Province”. Journal of Arts Management, vol. 6, no. 3, Aug. 2022, pp. 1570-84, https://so02.tci-thaijo.org/index.php/jam/article/view/255865.