NURMINI, M.; SUNARNO. MENINGKATKAN HASIL BELAJAR MATEMATIKA MATERI PENJUMLAHAN PECAHAN BERPENYEBUT BERBEDA MENGGUNAKAN MODEL PROBLEM BASED LEARNING DAN SNOWBALL THROWING. Jurnal Kiprah Pendidikan, [S. l.], v. 2, n. 4, p. 320–328, 2023. DOI: 10.33578/kpd.v2i4.205. Disponível em: https://kpd.ejournal.unri.ac.id/index.php/kpd/article/view/205. Acesso em: 3 aug. 2025.