Ruangtam, Weerayut. 2023. “GUIDELINES FOR SKILLS DEVELOPMENT OF SCHOOL ADMINISTRATORS IN THE 21st CENTURY UNDER LOEI PRIMARY EDUCATIONAL SERVICE AREA OFFICE 1”. Journal of Srilanchang Review 9 (2):57-70. https://so06.tci-thaijo.org/index.php/jslc/article/view/270065.