ดนตรีพงษ์ ท, รักงาม ช, ชำนาญ ส. FACTORS AFFECTING THE EFFECTIVENESS OF SCHOOL UNDER THE OFFICE SECONDARY EDUCATIONAL SERVICE AREA 9. AJPU [Internet]. 2018 Aug. 3 [cited 2024 Apr. 27];9(2):272-85. Available from: https://so01.tci-thaijo.org/index.php/AJPU/article/view/131358