Khumphim ภ. THE GUIDELINES FOR DEVELOPING CORE COMPETENCIES IN THE DIGITAL AGE ACCORDING TO THE DUTIYAPĀPAṆIKA SUTTA PRINCIPLES OF EDUCATIONAL INSTITUTION ADMINISTRATORS UNDER THE OFFICE OF THE LOEI PRIMARY EDUCATIONAL SERVICE AREA OFFICE 2. Integr. Soc. Sci. J. [Internet]. 2023 Dec. 31 [cited 2026 Nov. 10];3(9):1-15. Available from: https://ojs.mbuslc.ac.th/index.php/issj/article/view/230