NABILAH, Azzah; UTAMA , Candra. Effectiveness of Problem-Based Learning (PBL) in Improving Students’ Mathematical Ability: Results of a Literature Review. Khalifah : Jurnal Pendidikan Nusantara, [S. l.], v. 2, n. 2, p. 107–115, 2025. DOI: 10.62523/khalifah.v2i2.13. Disponível em: https://khalifah.aksarashofa.com/index.php/khalifah/article/view/13. Acesso em: 23 jun. 2025.