ASTYANINGRUM, Sucia; YP, Suyitno. EFEKTIVITAS MODEL PROBLEM BASED LEARNING TERHADAP PENILAIAN KOGNITIF SUBTEMA KESEIMBANGAN EKOSISTEM KELAS V SD. JS (JURNAL SEKOLAH), [S. l.], v. 2, n. 1, p. 102–106, 2018. DOI: 10.24114/js.v2i1.9927. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/js/article/view/9927. Acesso em: 4 jul. 2025.