Amal, Ikhlasul, Dwi Fadhiliani, and M. Hasbi. “Examining The Modelling Skills of Grade 8 Students on The System of Linear Equation in Two Variables through Problem-Based Learning Model”. Jurnal Ilmiah Pendidikan Matematika Al Qalasadi 8, no. 2 (December 30, 2024): 133-139. Accessed April 21, 2026. https://dev-journal.iainlangsa.ac.id/index.php/qalasadi/article/view/8248.