NURHAYATI SHOLIHAH, Ismi. EFEKTIVITAS MODEL PROBLEM BASED INSTRUCTION TERHADAP HASIL BELAJAR IPA SISWA KELAS IV SDN BOJONGRENGED 1. ELEMENTARY: Jurnal Inovasi Pendidikan Dasar , [S. l.], v. 5, n. 3, p. 669–681, 2025. DOI: 10.51878/elementary.v5i3.6890. Disponível em: https://www.jurnalp4i.com/index.php/elementary/article/view/6890. Acesso em: 26 apr. 2026.