Gesti, S.R. et al. 2025. Pengembangan Modul Ajar Sistem Pesamaan Linear Dua Variabel Berbasis Problem Solving. Pedagogy: Jurnal Pendidikan Matematika. 10, 2 (May 2025), 269–281. DOI:https://doi.org/10.30605/pedagogy.v10i2.5840.