Analysis of Problem-Based Learning Models in Mathematics Using Two Variables. SMART : Jurnal Teknologi Informasi dan Komputer , [S. l.], v. 2, n. 1, p. 23–28, 2023. Disponível em: https://journal.bengkuluinstitute.com/index.php/smart/article/view/185. Acesso em: 20 aug. 2026.