Khamsontha , P., & Duangchatom, K. (2023). The Guidelines for the Development of Transformative Leadership of School Administrators Under the Office of the Promotion of Non-formal Education and Informal Education. Journal for Developing the Social and Community, 10(2), 411–426. retrieved from https://so03.tci-thaijo.org/index.php/rdirmu/article/view/266618