LESTARIA, S. I.; HERMUTTAQIEN, B. P. F.; ARAS, L. Optimasi Pembelajaran Matematika Kelas V Sekolah Dasar Melalui Model Problem Based Learning. Kognisi : Jurnal Penelitian Pendidikan Sekolah Dasar, [S. l.], v. 3, n. 2, p. 56–61, 2023. DOI: 10.56393/kognisi.v3i2.1816. Disponível em: https://journal.actual-insight.com/index.php/kognisi/article/view/1816. Acesso em: 16 sep. 2025.