ABDUNBI, F.; SHLETIE, A. Mathematical Applications Of a Rough Topology In Medical Events (COVID19). مجلة البحوث الأكاديمية, [S. l.], v. 20, p. 7–10, 2021. DOI: 10.65540/jar.v20i.393. Disponível em: https://lam-journal.ly/index.php/jar/article/view/393. Acesso em: 8 2025.