Kamruzzaman, Joarder, and d S. M. Aziz. “A Neural Network Based Character Recognition System Using Double Backpropagation”. Malaysian Journal of Computer Science 11, no. 1 (June 1, 1998): 58–64. Accessed December 23, 2024. https://sare.um.edu.my/index.php/MJCS/article/view/3222.