Nazaruddin I, Yani F, Sundariany S, Utami A, Ginting E, Sitepu S, dkk. Peningkatan Hasil Belajar Matematika Melalui Model Pembelajaran Problem Based Learning Kelas 5 SDN 101739 Sei Mencirim. F.JMPM [Internet]. 5 November 2026 [dikutip 10 November 2026];9(2):200-7. Tersedia pada: https://siakad.univamedan.ac.id/ojs/index.php/JMPM/article/view/1525