MELPA RONAULI DAMANIK; RIO PARSAORAN NAPITUPULU; THERESIA MONIKA SIAHAAN. PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERHADAP HASIL BELAJAR IPA SISWA KELAS V UPTD SD NEGERI 122340 PEMATANGSIANTAR. Pengembangan Penelitian Pengabdian Jurnal Indonesia (P3JI), [S. l.], v. 2, n. 4, p. 35–43, 2024. Disponível em: https://jurnal.migascentral.com/index.php/p3ji/article/view/278. Acesso em: 20 jul. 2026.