Siripeth S. The Development of the Instructional Model based on Constructivist Theory Concepts Through Mathematics Drill Exercise. A Topic of Division, Mathematics Department for Prathomsuksa 4 Students, Phuket Provincial Administration Organization, Muangphuket School. AJMBU [Internet]. 2020 May 22 [cited 2024 Apr. 29];10(2):257-70. Available from: https://so01.tci-thaijo.org/index.php/AJMBU/article/view/248779