cover vol 7 no 1. Jurnal Ilmiah Soulmath : Jurnal Edukasi Pendidikan Matematika, [S. l.], v. 7, n. 1, 2019. DOI: 10.25139/smj.v7i1.1640. Disponível em: https://ejournal.unitomo.ac.id/index.php/mipa/article/view/1640. Acesso em: 16 jun. 2026.