GRAZIANI, I.; BABINI, S. Doing math with the Khan Academy. EDiMaST: Experiences of Teaching with Mathematics, Sciences and Technology, [S. l.], v. 3, n. 1, p. 18, 2018. Disponível em: https://www.edimast.it/index.php/edimast/article/view/48. Acesso em: 28 nov. 2021.