MUSSAFAH, M.; APRINASTUTI, C. . PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA KELAS 2 SD KANISIUS KADIROJO. ELEMENTARY: Jurnal Inovasi Pendidikan Dasar , [S. l.], v. 3, n. 3, p. 98-104, 2023. DOI: 10.51878/elementary.v3i3.2401. Disponível em: https://jurnalp4i.com/index.php/elementary/article/view/2401. Acesso em: 27 mar. 2026.