PROF. JYOTI I. NANDALWAR; PROF. VITESHKUMAR GAIKWAD; PROF. SHRIPAD KULKARNI. A SURVEY AND COMPARISON ON USER AUTHENTICATION METHODS. International Journal of Innovations in Engineering Research and Technology, Maharashatra, India, p. 1–7, 2021. Disponível em: https://repo.ijiert.org/index.php/ijiert/article/view/1162. Acesso em: 16 aug. 2025.