Khadthan, Atcharapan, and Prajob Kwanman. “The Guidelines for Administration of Assessment Processes in Position and Academic Standing of Government Teachers and Education Personnel in the Secondary Educational Service Area Office Kamphaeng Phet”. Journal of Graduate MCU KhonKaen Campus 12, no. 1 (March 27, 2025): 1–15. accessed April 3, 2025. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/274304.