PALOBO, Markus. Keefektifan pendekatan problem posing dan problem solving dalam pembelajaran kalkulus II. Jurnal Riset Pendidikan Matematika, [S. l.], v. 3, n. 2, p. 234–244, 2016. DOI: 10.21831/jrpm.v3i2.9369. Disponível em: https://journal.uny.ac.id/index.php/jrpm/article/view/9369. Acesso em: 9 may. 2025.