Sasri N, Piampeuchana N. The Internal Supervision of School Administrators under the Office of Khon Kaen Primary Educational Service Area 5. jomld [internet]. 2022 Nov. 30 [cited 2026 Sep. 2];7(10):16-28. available from: https://so06.tci-thaijo.org/index.php/jomld/article/view/257755