Krueawan N, Ladawan K, Maythaisong S. Academic Affairs Administration Based on the Threefold Training to Develop Learners in Private School Promotion Groups Under Kalasin Provincial Education Office. AJMBU [Internet]. 2020 Sep. 21 [cited 2024 Apr. 24];10(2):312-23. Available from: https://so01.tci-thaijo.org/index.php/AJMBU/article/view/243045