The Concept of (Gem-Set) in Topology, A Review . JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences, [S. l.], v. 27, n. 3, p. 213–217, 2019. Disponível em: https://journalofbabylon.com/index.php/JUBPAS/article/view/2407. Acesso em: 19 apr. 2025.