Sopaying A. AN EVALUATION OF ENVIRONMENT DEVELOPMENT PROJECT FACILTATING LEARNING MANAGMENT UNDER THE CHIANGRAI PRIMARY EDUCATIONAL SERVICE AREA OFFICE 4. JSBA [internet]. 2020 Jul. 22 [cited 2026 Mar. 7];5(7):394-409. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/242471