Badawi, Bakri, Teh Noranis Mohd Aris, Norwati Mustapha, and Noridayu Manshor. “FUZZY ENCODER FRAMEWORK FOR FOUR LAYERS COLOR QR CODE”. Malaysian Journal of Computer Science (December 31, 2019): 118–130. Accessed May 6, 2024. https://ejournal.um.edu.my/index.php/MJCS/article/view/21468.