Sopa K. MANAGEMENT MODEL FOR DEVELOPING THE SCHOOL’S EDUCATIONAL QUALITY ASSURANCE SYSTEM PA HUNG SUBDISTRICT ADMINISTRATIVE ORGANIZATION SCHOOL, PHAN, CHIANG RAI PROVINCE. JSC [Internet]. 2024 Mar. 31 [cited 2024 May 19];8(3):38-47. Available from: https://so06.tci-thaijo.org/index.php/JSC/article/view/271795