Syabila Zabidi, Nur, Noris Mohd Norowi, and Rahmita Wirza O.K. Rahmat. “A Usability Evaluation of Image and Emojis in Graphical Password”. International Journal of Engineering & Technology 7, no. 4.31 (December 9, 2018): 400–407. Accessed May 4, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/23719.