Pre-irresolute Functions in Closure Spaces. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 12, n. 3, p. 1082–1095, 2019. DOI: 10.29020/nybg.ejpam.v12i3.3317. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/3317.. Acesso em: 28 apr. 2024.