Peningkatan hasil belajar matematika melalui model pembelajaran Problem Based Learning berbantuan media konkret siswa kelas 1 SDN Sawah Besar 01. Jurnal Pendidikan Guru Profesional, [S. l.], v. 3, n. 1, p. 1–7, 2025. DOI: 10.26877/jpgp.v3i1.1690. Disponível em: https://journal2.upgris.ac.id/index.php/jpgp/article/view/1690. Acesso em: 14 oct. 2025.