Tapa, J. . ., Thammasit, P. ., & Sichomphoo, C. . (2020). The Guidelines for Change Management on Learning Process Development of Small-Sized Schools Under Phitsanulok Primary Education Service Area 3. Journal of Graduate Research, 11(2), 149–162. Retrieved from https://so02.tci-thaijo.org/index.php/banditvijai/article/view/240960