kusirirat, kampanart. (2021). DEVELOPMENT OF LEARING OBJECT MEDIA ACCORDANCE WITH PRINCIPLES OF EDUTAINMENT FOR ENHANCING MATHEMATICAL PROBLEM SOLVING OF UNDERGARADUATE STUDENTS. Pathumthani University Academic Journal, 13(2), 324–340. Retrieved from https://so05.tci-thaijo.org/index.php/ptujournal/article/view/253863