Rosida, Nurlafifah, and Heni Pujiastuti. “Analisis Pemahaman Konsep Sistem Persamaan Linear Dua Variabel”. Jurnal Analisa 6, no. 2 (December 29, 2020): 163–172. Accessed June 3, 2026. http://journal.uinsgd.ac.id/index.php/analisa/article/view/8400.