AMRINA, Z; DESFITRI, R; ZUZANO, F; WAHYUNI, Y; HIDAYATI, H. Development of Problem-based Mathematic Learning Model to Increase Students’ Competence. KnE Social Sciences, [S. l.], v. 3, n. 15, p. 222–233, 2019. DOI: 10.18502/kss.v3i15.4369. Disponível em: https://knepublishing.com/index.php/KnE-Social/article/view/4369. Acesso em: 5 dec. 2025.