Lunsumrong S, Tochot P, Arampongpun S. The 21st Century Skills of School Administrators Affecting Academic Administration Toward Excellence of School Under Khon Kaen Primary Education Service Area Office 2. IARJ [internet]. 2025 Nov. 15 [cited 2026 Sep. 25];5(6):81-98. available from: https://so03.tci-thaijo.org/index.php/IARJ/article/view/286718