Lerdpreecha, S., & Techawattanasiridumrong, W. (2022). Guidelines for Development Roles of School Administrators in Academic Administration Under Secondary Education Office Service SingBuri Angthong Angthong Province. Mahachula Academic Journal, 9(2), 34–49. Retrieved from https://so04.tci-thaijo.org/index.php/JMA/article/view/254857