Sukmuang D. Competencies of School Administrators Affecting The Success of Academic Administration in Schools under Suratthani Primary Educational Service Area Office 2. IARJ [internet]. 2025 May 23 [cited 2026 Oct. 12];5(3):95-110. available from: https://so03.tci-thaijo.org/index.php/IARJ/article/view/282667