Ritthimas T, Sawetvorrachot T, Aunjanam S. INDICATOR DEVELOPMENT OF UPRIGHT SCHOOL IN THE PRIMARY SCHOOL GOVERNMENT INSPECTORATE AREA 5. JEI [internet]. 2024 Dec. 15 [cited 2026 Sep. 15];26(4):228-41. available from: https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/270341