Aniedu A N, Okezie C C, Eze C E and Udegbunam E U (2021) “Keypad Controlled Dot Matrix Display”, International Journal of Progressive Research in Science and Engineering , 2(6), pp. 41–45. Available at: https://journal.ijprse.com/index.php/ijprse/article/view/295 (Accessed: 22 November 2024).