Plongtong P, Kaewmongkol S, Kareevate S. Excellence Academic Affairs Management Model of School Administrators in 21st Century The Secondary Educational Service Area Office Nonthaburi. RJPJ [internet]. 2023 Dec. 27 [cited 2026 Sep. 13];17(55):483-97. available from: https://so05.tci-thaijo.org/index.php/RJPJ/article/view/268724