พุ่มพวง อ, สุวรรณโพธิ์ ผ, ธีระวณิชตระกูล ส. Problems and Guided Development of Academic Affairs Administration of Secondary Schools in Samutprakarn Under Secondary Educational Service Area Office 6. RJPJ [Internet]. 2017 Feb. 12 [cited 2024 May 21];11(21):210-9. Available from: https://so05.tci-thaijo.org/index.php/RJPJ/article/view/171742