ISMAIL, S. Internet and Its Services. Adab Al-Rafidayn, [S. l.], v. 39, n. 55, p. 478–508, 2000. DOI: 10.33899/radab.2009.30940. Disponível em: https://jcis.uomosul.edu.iq/index.php/radab/article/view/32877. Acesso em: 3 oct. 2025.