Bipolar Soft Topological Spaces. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 13, n. 2, p. 227–245, 2020. DOI: 10.29020/nybg.ejpam.v13i2.3645. Disponível em: https://ejpam.com/index.php/ejpam/article/view/3645.. Acesso em: 16 jun. 2024.