AVANI J. PATEL; ANKITA GANDHI. A survey on performance evaluation of VPN. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 3, p. 516–520, 2017. Disponível em: https://ijaerd.com/index.php/IJAERD/article/view/2096. Acesso em: 5 dec. 2023.