Yodket, K., and K. . Indusuta. “Strategic Leadership of School Administrators in the 21st Century in the School of the United Campus, Nuanchan The Secondary Educational Service Area Office Bangkok 2”. Faculty of Humanities and Social Sciences Thepsatri Rajabhat University Journal, vol. 13, no. 3, Dec. 2022, pp. 83-98, https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/256438.