BIANTARA, D. N. A. MENINGKATKAN PRESTASI BELAJAR MATEMATIKA MELALUI PENGGUNAAN MODEL PEMBELAJARAN PROBLEM SOLVING. Journal of Education Action Research, [S. l.], v. 4, n. 2, p. 171–177, 2020. DOI: 10.23887/jear.v4i2.25003. Disponível em: https://ejournal.undiksha.ac.id/index.php/JEAR/article/view/25003. Acesso em: 29 feb. 2024.