VIKAS K. KOLEKAR; MILINDKUMAR B. VAIDYA. SHUFFLED INPUT GRAPHICAL PASSWORD AUTHENTICATION SCHEMES BUILT ON CAPTCHA TECHNOLOGY . International Journal of Innovations in Engineering Research and Technology, Maharashatra, India, p. 1–4, 2021. Disponível em: https://repo.ijiert.org/index.php/ijiert/article/view/618. Acesso em: 6 nov. 2025.