Boonrawd, Somkeit. “Model of Teachers Developing by Using the Process of Professional Learning Community in Secondary Schools Supervisory District 18”. Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University 17, no. 1 (March 10, 2023): 56–72. Accessed May 17, 2024. https://so01.tci-thaijo.org/index.php/GraduatePSRU/article/view/260844.