Wunnasin, Sirinapa, Siri Thee-asana, and Sanae Khamsommai. 2021. “ACADEMIC ADMINISTRATION GUIDELINES OF PRIVATE ELEMENTARY SCHOOLS”. Journal of Graduate MCU KhonKaen Campus 8 (2):139-50. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/248114.