R. SHAKIR, Qays. Mean Semi-Open Sets. Pure Sciences International Journal of Kerbala, [S. l.], v. 2, n. 6, p. 17–20, 2025. Disponível em: https://mail.journals.uokerbala.edu.iq/index.php/psijk/article/view/2669. Acesso em: 17 apr. 2026.