Fatmasari, Hanindya, S.B Waluya, and Sugianto Sugianto. “Mathematical Problem Solving Ability Viewed from Self-Efficacy of 7th Grade Students”. Unnes Journal of Mathematics Education Research 10, no. A (December 14, 2020): 206-211. Accessed December 20, 2024. https://journal.unnes.ac.id/sju/ujmer/article/view/43208.