Phrakhrusuwanworakarn, S. . Kaewsri, and Y. . Praneet. “Management Development of Education in Sangha Administrative Region 1”. Journal of MCU Social Science Review, vol. 4, no. 3, July 2020, pp. 17-32, https://so03.tci-thaijo.org/index.php/jssr/article/view/245432.