INDRIYATI, Mia; RODLIYAH, Iesyah. Enhancing Students’ Mathematical Problem-Solving Skills through Problem-Based Learning in Systems of Linear Equations in Two Variables at Junior High School Level. Vygotsky: Jurnal Pendidikan Matematika dan Matematika, [S. l.], v. 8, n. 1, p. 41–50, 2026. DOI: 10.30736/voj.v8i1.1322. Disponível em: https://jurnalpendidikan.unisla.ac.id/index.php/VoJ/article/view/1322. Acesso em: 8 nov. 2026.