Khoerunnisa, H. A. ., Aripin, U., & Hanifah, N. F. (2023). Problem-Solving Skills of Seventh-Grade Students in Ratio Topic. Edumatika : Jurnal Riset Pendidikan Matematika, 6(2), 92–104. https://doi.org/10.32939/ejrpm.v6i2.3106