SIAHAAN, M. F.; ANI, Y. Kelas Sosial Dan Pembelajaran Matematika. Jurnal Ilmiah Sekolah Dasar, [S. l.], v. 3, n. 1, p. 63–70, 2019. DOI: 10.23887/jisd.v3i1.17182. Disponível em: https://ejournal.undiksha.ac.id/index.php/JISD/article/view/17182. Acesso em: 22 dec. 2024.