Sarnkham, Suwanan, Prasong Hassarin, and PhrakhruPariyattikhunrangsi -. “The academic administration by the principle of four sangahavathu for the administrators under the office of loei primary educational service area 2”. Journal of Graduate Saket Review 8, no. 2 (December 31, 2023): 24–35. accessed December 9, 2025. https://so03.tci-thaijo.org/index.php/saketreview/article/view/261721.