Kruewaengmon, Jiraporn, and Thanarat Sripongngam. “Developing a Guideline to Learning Environment of Schools in Secondary Educational Service Area Office 24”. Academic Journal of Mahamakut Buddhist University Roi Et Campus 9, no. 2 (July 8, 2019): 106–115. Accessed February 8, 2023. https://so01.tci-thaijo.org/index.php/AJMBU/article/view/244691.