Ismail, Zarina, and Mohd Fairus Adzha Zakaria. “Display/Scoreboard/Using/LED/Dot/Matrix”. Politeknik & Kolej Komuniti Journal of Engineering and Technology, vol. 6, no. 1, Nov. 2021, pp. 111-20, https://app.mypolycc.edu.my/journal/PMJET/article/view/238.