Hrutkhong, A., Banwiset, S., & Nuntee, S. (2024). 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(2), 33–46. retrieved from https://so06.tci-thaijo.org/index.php/jslc/article/view/284185