Sangsutthi T, Waroonroj J. STUDENT AFFAIRS ADMINISTRATION GUIDELINES IN SMALL SCHOOLS UNDER KHON KAEN PRIMARY EDUCATIONAL SERVICE AREA OFFICE 5. JBER [internet]. 2022 Apr. 30 [cited 2026 Aug. 28];8(1):313-2. available from: https://so06.tci-thaijo.org/index.php/jber/article/view/257021