Tanchai, Sathaka, Nattachai Jantachum, and Chumnian Pollaharn. “A Model of Educational Management in the Bilingual Education System by Emphasis Participation of the Community of Schools under the Roi Et Secondary Education Service Area Office”. Journal of Research and Development Institute Rajabhat Maha Sarakham University 9, no. 2 (August 28, 2022): 469–488. Accessed May 19, 2024. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/258147.