Wan Sin, Yim, Ahmad Johari Sihes, and Mas Hamidon. “A Review of Problem-Solving Skills in Mathematics and Cooperative Learning Among Primary School Students”. International Journal of Psychosocial Rehabilitation 24, no. 5 (July 31, 2020): 605–613. Accessed May 23, 2025. https://psychosocial.com/index.php/ijpr/article/view/4611.