Phakum, R., B. Petwisit, and W. Ariratana. “Approach for Agile Leadership Development of School Administrators”. KKU Research Journal (Graduate Studies) Humanities and Social Sciences, vol. 13, no. 3, July 2026, pp. 101-1, https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/279588.