Muangmanit S, Thumachai P. THE GUIDELINES FOR AMICABLE INTERNAL SUPERVISION ADMINISTRATION OF SCHOOLS IN KHUN YUAM DISTRICT UNDER MAE HONG SON PRIMARY EDUCATIONAL SERVICE AREA OFFICE 1. SN Grad J. [internet]. 2026 Mar. 30 [cited 2026 Oct. 13];23(100):175-90. available from: https://so02.tci-thaijo.org/index.php/SNGSJ/article/view/277544