FIRDAUS, A.; ASIKIN, M.; WALUYA, B.; ZAENURI, Z. Problem Based Learning (PBL) Untuk Meningkatkan Kemampuan Matematika Siswa. QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama, [S. l.], v. 13, n. 2, p. 187–200, 2021. DOI: 10.37680/qalamuna.v13i2.871. Disponível em: https://ejournal.insuriponorogo.ac.id/index.php/qalamuna/article/view/871. Acesso em: 9 jul. 2025.