“Pengembangan Modul Matematika Berbasis Model Pembelajaran Problem Based Learning Pada Materi Sistem Persamaan Linier Dua Variabel Kelas VIII SMP MTs”. Suska Journal of Mathematics Education, vol. 8, no. 1, May 2022, pp. 31-38, https://doi.org/10.24014/sjme.v7i2.13955.