Supathong , N., Pothivat , S., & Duangchathom , S. (2021). An Excellent School Leadership according to the Principles of Sufficiency Economy: A Study to Create Grounded Theory. Journal of Roi Et Rajabhat University, 15(1), 98–109. Retrieved from https://so03.tci-thaijo.org/index.php/reru/article/view/237690