Agustina, Nia, Laila Hayati, Nani Kurniati, and Eka Kurniawan. 2023. “Analysis of Mathematical Problem Solving Ability in View FromSelf-Efficacy Student Social Arithmetic Material”. Sigma&Mu: Journal of Mathematics, Statistics and Data Science 1 (2):8-18. https://journals.balaipublikasi.id/index.php/sigmamu/article/view/143.