PENINGKATAN KERJASAMA DAN HASIL BELAJAR TEMATIK MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING. Naturalistic: Jurnal Kajian dan Penelitian Pendidikan dan Pembelajaran, [S. l.], v. 3, n. 1, p. 254–286, 2020. DOI: 10.35568/naturalistic.v3i1.274. Disponível em: https://journal.umtas.ac.id/naturalistic/article/view/274. Acesso em: 28 jan. 2026.