SRUTHY MANMADHAN2, N. N. A. On Screen Randomized Keyboard with Virtual Password Functions. International Journal of Engineering Technology and Computer Research, [S. l.], v. 3, n. 2, 2015. Disponível em: https://ijetcr.ijmbs.info/index.php/ijetcr/article/view/122. Acesso em: 21 apr. 2026.