PASSMATRIX BASED SHOULDER SURFING RESISTANT GRAPHICAL AUTHENTICATION SYSTEM: Review. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 1, p. 187–192, 2017. Disponível em: https://www.ijaerd.org/index.php/IJAERD/article/view/1795. Acesso em: 7 aug. 2025.