On Supra b−open Sets and Supra b-continuity on Topological Spaces. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 3, n. 2, p. 295–302, 2010. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/721.. Acesso em: 16 jul. 2024.