HASSANAT, Ahmad B A. Visual Passwords Using Automatic Lip Reading. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 13, n. 1, p. 218–231, 2014. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/1727. Acesso em: 28 sep. 2025.