TARISH HAIDER, Haider; HALBOOT MOHUSSEN, Deia. Virtual Privet Networks using Cisco Routers. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 13, n. 4, p. 10–27, 2009. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1493.. Acesso em: 18 apr. 2025.