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. PNJ [Internet]. 2024 Oct. 24 [cited 2026 Feb. 6];2(4):42-5. Available from: https://jurnal.migascentral.com/index.php/pnj/article/view/263