PRADILA, Mesiyanti Putri; KRISTIN, Firosalia. Model Pembelajaran Problem Based Learning Untuk Meningkatkan Konsentrasi dan Hasil Belajar IPS Siswa Sekolah Dasar. Jurnal Educatio FKIP UNMA, [S. l.], v. 9, n. 4, p. 1947–1953, 2023. DOI: 10.31949/educatio.v9i4.5759. Disponível em: https://www.ejournal.unma.ac.id/index.php/educatio/article/view/5759. Acesso em: 1 aug. 2025.