Kottonglang, Jitkamol. “DEVELOPING A PROGRAM TO STRENGTHEN LEARNING LEADERSHIP OF SCHOOL ADMINISTRATORS UNDER THE SECONDARY EDUCATION SERVICE AREA OFFICE MAHASARAKHAM”. Journal of MCU Nakhondhat 8, no. 7 (June 30, 2021): 158–171. Accessed March 28, 2024. https://so03.tci-thaijo.org/index.php/JMND/article/view/253513.