Kaewudon N, Buakanok FS. DEVELOPMENT OF INSTRUCTIONAL DESIGN WITH ONLINE LEARNING APPLICATIONS BY GAMIFICATION LEARNING APPROACH TO PROMOTE THE ABILITY TO THINK AND SOLVE PROBLEMS SYSTEMATICALLY OF ELEMENTARY SCHOOL STUDENTS. AJMBU [Internet]. 2022 Jun. 17 [cited 2024 Apr. 25];11(2):489-502. Available from: https://so01.tci-thaijo.org/index.php/AJMBU/article/view/250782