Rough Spaces on Covering Based Rough Sets. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 12, n. 2, p. 533–543, 2019. DOI: 10.29020/nybg.ejpam.v12i2.3420. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/3420.. Acesso em: 27 may. 2024.