Cahyani, Hesti, Hardi Suyitno, and Iwan Junaidi. “The Student’s Errors in Mathematical Problem Solving Based on NEA Judging from the Self Efficacy on Learning CORE”. Unnes Journal of Mathematics Education Research 9, no. 1 (July 17, 2019): 69-77. Accessed November 22, 2024. https://journal.unnes.ac.id/sju/ujmer/article/view/31678.