romsri , Chanakan, and Juntima Romsri. “Problems in Learning Management and Administration According to the Sufficiency Economy Philosophy of Educational Institutions under Roi-Et Primary Educational Service Area Office 1”. Journal of Research and Development Institute Rajabhat Maha Sarakham University 8, no. 2 (August 23, 2021): 155–168. Accessed April 29, 2024. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/251215.