Hamapinda, Eryani, Anggriati Ledu Ngaba, and Yuliana Tamu Ina Nuhamara. 2021. “Analysis of the Students Mathematics Problem Solving Ability of Grade VII on Integer Operation Material”. Edumatica : Jurnal Pendidikan Matematika 11 (2):46-54. https://doi.org/10.22437/edumatica.v11i02.12210.