แข็งแอ คมสัน. “The Guidelines of Participatory Administration Development for School Administrators under The Office of Nongbualamphu Educational Service Area 1”. Journal of Humanities and Social Sciences, Rajapruk University 5, no. supplement (December 31, 2019): 181–195. Accessed April 27, 2024. https://so03.tci-thaijo.org/index.php/rpu/article/view/231915.