YULIASARI, I. MODEL PEMBELAJARAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR IPS SD. Buletin Ilmiah Pendidikan, [S. l.], v. 2, n. 2, p. 171–178, 2023. DOI: 10.56916/bip.v2i2.514. Disponível em: https://ejournal.papanda.org/index.php/bip/article/view/514. Acesso em: 12 jan. 2026.