TULIA, M. S. Application of Problem Based Learning Models with Realistic Mathematics Approach in Learning of Two Variables Linear Equations Systems. Numerical: Jurnal Matematika dan Pendidikan Matematika, [S. l.], v. 6, n. 2, 2023. Disponível em: https://journal.iaimnumetrolampung.ac.id/index.php/numerical/article/view/3836. Acesso em: 6 sep. 2025.