YANUARTO, W. N. PENINGKATAN KREATIVITAS BELAJAR MATEMATIKA MELALUI PEMBELAJARAN PROBLEM SOLVING. De Fermat : Jurnal Pendidikan Matematika, [S. l.], v. 2, n. 2, p. 109–115, 2020. DOI: 10.36277/defermat.v2i2.54. Disponível em: https://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/54. Acesso em: 22 nov. 2024.