Core Competencies of School Administrators in Mueang Sa Kaeo District under the Sa Kaeo Primary Educational Service Area Office 1. BMV [Internet]. 2026 May 31 [cited 2026 Jun. 13];3(3-2):54-68. Available from: https://benjamit.thonburi-u.ac.th/ojs/index.php/bmv16/article/view/497