Rahayu, Y. K., Mariani, S. and Masrukan, M. (2018) “Missouri Mathematics Project Model Using Problem Based Learning Approach to Increase Problem-Solving Ability”, Journal of Primary Education, 8(2), pp. 184-191. Available at: https://journal.unnes.ac.id/sju/jpe/article/view/25985 (Accessed: 23November2024).