ISWANTO. Problem-Based Learning dalam Pembelajaran Sistem Persamaan Linear Dua Variabel. DIALEKTIKA: Jurnal Ilmiah Pendidikan Bahasa, Sastra, dan Matematika, [S. l.], v. 8, n. 2, p. 1–11, 2022. Disponível em: https://journal.fkip-unilaki.ac.id/index.php/dia/article/view/37. Acesso em: 12 oct. 2025.