RUTH STEPHANI PUKKA MARTUANI SINAGA; YANTI ARASI SIDABUTAR; MASNI VERONIKA SITUMORANG. PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR IPA SISWA KELAS IV SD NEGERI 122345 PEMATANGSIANTAR. Pengembangan Penelitian Pengabdian Jurnal Indonesia (P3JI), [S. l.], v. 3, n. 4, p. 292–299, 2025. Disponível em: https://jurnal.migascentral.com/index.php/p3ji/article/view/410. Acesso em: 4 jun. 2026.