Jumroonsiri เ, Nuntee ศ, Jitthaisong อ. GUIDELINES FOR MANAGEMENT OF ZERO WASTE SCHOOL UNDER LOEI PRIMARY EDUCATIONAL SERVICE AREA OFFICE 1. Integr. Soc. Sci. J. [Internet]. 2024 Apr. 30 [cited 2026 Nov. 10];4(10):13-31. Available from: https://ojs.mbuslc.ac.th/index.php/issj/article/view/251