Hoimook, Nittaya, and Pha Agsornsua. “Leadership Skill Development Strategies for the 21st Century of Primary School Administrators”. Princess of Naradhiwas University Journal of Humanities and Social Sciences 7, no. 1 (September 20, 2019): 83–97. Accessed May 7, 2024. https://so05.tci-thaijo.org/index.php/pnuhuso/article/view/216879.