Arifin, S. ., Murniasih, T. R., Rahaju, R., & Dani, A. V. (2024). Fraction Multiplication: Analysis of Student Representation Errors Based on APOS Mental Mechanisms. Jurnal Riset Pendidikan Dan Inovasi Pembelajaran Matematika, 8(1), 19–28. https://doi.org/10.26740/jrpipm.v8n1.p19-28