Tantrakul, Sathaporn, and Niyada Piampeuchana. 2024. “The Administrators, Leadership in the 21st Century Affecting to School Effectiveness under Khonkaen Primary Educational Service Area office 5”. Journal of Graduate MCU KhonKaen Campus 11 (3):207-20. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/269770.