Hrutkhong, Amporn, Suchart Banwiset, and Sakdinaporn Nuntee. “GUIDELINES FOR DEVELOPMENT INSTRUCTIONAL LEADERSHIP OF TEACHERS IN SCHOOL UNDER THE SECONDARY EDUCATIONAL SERVICE AREA OFFICE LOEI NONG BUA LAM PHU”. Journal of Srilanchang Review 10, no. 2 (December 31, 2024): 33–46. accessed August 26, 2026. https://so06.tci-thaijo.org/index.php/jslc/article/view/284185.