GOH, KIAT YONG, and Aimi Syammi Binti Ab Ghafar. “Handwritten Digit Recognition System Using Convolutional Neural Network (CNN)”. Progress in Engineering Application and Technology 2, no. 1 (June 22, 2021): 578–592. Accessed June 27, 2022. https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/960.