REYES, A. R. L.; FESTIJO, E. D.; MEDINA, R. P. Enhanced Multi-factor Out-of-Band Authentication En Route to Securing SMS-based OTP Ariel. International Journal of Engineering and Technology Innovation, [S. l.], v. 9, n. 2, p. 145–154, 2019. Disponível em: https://ojs.imeti.org/index.php/IJETI/article/view/3394. Acesso em: 27 may. 2024.