Radzi, S. A., N. A. Hamid, Y. C. Wong, M. F. Ramli, and Z. M. Noh. “Smart Data Recognition System For Seven Segment LED Display”. International Journal of Human and Technology Interaction (IJHaTI), vol. 4, no. 2 October, Oct. 2020, pp. 31-38, https://ijhati.utem.edu.my/ijhati/article/view/5960.