การเนตร ช, แก้วมงคล ท. Transformational Leadership of School Administrators Affecting the Performance of Teachers under the Office of the Secondary Education Service Area Office Chachoengsao. BMV [Internet]. 2026 May 31 [cited 2026 Jul. 29];3(1):267-85. Available from: https://benjamit.thonburi-u.ac.th/ojs/index.php/bmv16/article/view/502