AHMAD, Nazihah; ASAAD, Baravan A. MORE PROPERTIES OF AN OPERATION ON SEMI-GENERALIZED OPEN SETS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 39, p. 608–627, 2018. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6877. Acesso em: 26 sep. 2026.