Purwanti, Devi, Zaenuri Zaenuri, and Mohammad Asikin. “Problem Solving Ability in the Learning Model of Problem-Based Learning Based on Ethnomathematics”. Journal of Primary Education 8, no. 7 (September 26, 2019): 113-120. Accessed November 24, 2024. https://journal.unnes.ac.id/sju/jpe/article/view/34303.