YEE, P. L.; MAT KIAH, M. L. Shoulder Surfing Resistance Using PENUP Event And Neighboring Connectivity Manipulation. Malaysian Journal of Computer Science, [S. l.], v. 23, n. 2, p. 121–140, 2010. Disponível em: https://mjcs.um.edu.my/index.php/MJCS/article/view/6404. Acesso em: 22 nov. 2024.