Srimuangbun A. Instructional Leadership of School Administrators under the Office of Nongbualamphu Primary Education Service Area Office 1. AJMBU [Internet]. 2021 Jan. 11 [cited 2024 Apr. 25];10(1):ุ634-644. Available from: https://so01.tci-thaijo.org/index.php/AJMBU/article/view/243530