Unification of Generalized pre-regular closed Sets on Topological Spaces. Iraqi Journal of Science, [S. l.], v. 64, n. 9, p. 4557–4567, 2023. DOI: 10.24996/ijs.2023.64.9.21. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/5239.. Acesso em: 23 nov. 2024.