MOHAMMED, R. A.; AMEEN, R. S. Soft ξ-open sets in Soft Topological Spaces. Science Journal of University of Zakho, [S. l.], v. 7, n. 3, p. 108–119, 2019. DOI: 10.25271/sjuoz.2019.7.3.598. Disponível em: https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/598. Acesso em: 20 apr. 2024.