1.
Sukgunya S, Polyiem T. The Development of a Problem Based Learning Management Teacher Development Program for Schools under the Office of the Secondary Educational Service Area 28. AJMBU [Internet]. 2021 May 13 [cited 2024 Apr. 26];10(2):ึ720-732. Available from: https://so01.tci-thaijo.org/index.php/AJMBU/article/view/246588