BETTY SINAGA; OSCO PARMONANGAN SIJABAT; DESI SIJABAT. PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR IPA SISWA KELAS V UPTD SD NEGERI 125546 PEMATANGSIANTAR. Pengembangan Penelitian Pengabdian Jurnal Indonesia (P3JI), [S. l.], v. 2, n. 2, p. 63–72, 2024. Disponível em: https://jurnal.migascentral.com/index.php/p3ji/article/view/204. Acesso em: 20 apr. 2026.