M. ABDUL-JABBAR, A. A Generalization of A Contra Pre Semi-Open Maps. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 3, n. 2, p. 59–68, 2006. DOI: 10.33899/csmj.2006.164052 . Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36384. Acesso em: 17 dec. 2025.