Phongphala, V. (2020). The Development Model of Organizational Effectiveness for Small Primary Schools in the State Under the Office of Basic Education in the Education Sector 11. Journal of Research and Development Institute Rajabhat Maha Sarakham University, 7(1), 329–342. Retrieved from https://so03.tci-thaijo.org/index.php/rdirmu/article/view/245088