KHAN, U. P. Ethical Hacking and Countermeasures Web Applications and Data Servers. Cyberpolitik Journal, [S. l.], v. 5, n. 10, p. 309-311, 2020. Disponível em: http://cyberpolitikjournal.org/index.php/main/article/view/115. Acesso em: 18 apr. 2021.