TOADER, R. PayPal Transactions Security. Journal of Mobile, Embedded and Distributed Systems, [S. l.], v. 6, n. 4, p. 167-171, 2014. Disponível em: http://www.jmeds.eu/index.php/jmeds/article/view/PayPal_Transactions_Security. Acesso em: 29 apr. 2024.