Wananam P, Prabhong U, Gumjudpai S. DEVELOPMENT OF MATHEMATICS THE INSTRUCTIONAL MODEL BASED ON CONSTRUCTIONISM IN THE SUBJECT OF LEARNING MEDIA CONSTRUCTION FOR MATHEMATICS STUDENTS IN FACULTY OF EDUCATION, SAKON NAKHON RAJABHAT UNIVERSITY. JSBA [internet]. 2021 Sep. 11 [cited 2026 Apr. 22];6(9):82-97. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/253708