Pengaruh Model Pembelajaran Problem Based Learning terhadap Kemampuan Pemecahan Masalah Matematika Mahasiswa PGSD. Jurnal Ilmu Pendidikan Nasional (JIPNAS), [S. l.], v. 4, n. 1, p. 33–39, 2026. DOI: 10.59435/jipnas.v4i1.656. Disponível em: https://jurnal.padangtekno.com/index.php/jipnas/article/view/656. Acesso em: 19 may. 2026.