Padung-waing , Thubtimphorn, and Amorn Malasri. 2021. “The Study of the Results of Applying the Philosophy of Sufficiency Economy to the Management of the School Mission under the Secondary Educational Service Area Office 24”. Journal of Research and Development Institute Rajabhat Maha Sarakham University 8 (2):451-68. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/251479.