J. Lin Eby Chandra, M.Kumaran, R. Chandrakala, V.Seedha Devi, S. Rajendran. “Puzzle Based Password Authentication by Using Grid Selection”. Mathematical Statistician and Engineering Applications 71, no. 4 (January 11, 2023): 8630–8639. Accessed May 6, 2024. https://www.philstat.org/index.php/MSEA/article/view/1550.