Research on Mixed Teaching Mode of Discrete Mathematics under Epidemic Situation. Contemporary Education and Teaching Research, [S. l.], v. 3, n. 2, p. 39–40, 2022. DOI: 10.47852/bonviewCETR2022030204. Disponível em: http://ojs.bonfuturepress.com/index.php/CETR/article/view/265. Acesso em: 5 feb. 2025.