AZIZ HUSSAN AL – ABDULLA, Raad; FADHIL AL – OMRI, Karim. On Β*c– open set and its properties. Journal of Al-Qadisiyah for Computer Science and Mathematics, [S. l.], v. 11, n. 1, p. Math Page 27 – 35, 2018. DOI: 10.29304/jqcm.2019.11.1.447. Disponível em: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/447. Acesso em: 15 nov. 2024.