YUNI ELISA SITANGGANG; HETDY SITIO; JANWAR TAMBUNAN. PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS V UPTD SD NEGERI 122345 PEMATANGSIANTAR. Pande Nami Jurnal (PNJ), [S. l.], v. 2, n. 4, p. 42–52, 2024. Disponível em: https://jurnal.migascentral.com/index.php/pnj/article/view/263. Acesso em: 6 feb. 2026.