Bello, Rotimi-Williams. “Simplified Traffic Lights Using 8051 Maxim DS89C4XX Embedded Controller (MDE): Simplified Traffic Lights Using 8051 Maxim DS89C4XX Embedded Controller (MDE)”. Asian Journal of Mathematical Sciences(AJMS) 3, no. 3 (September 25, 2019). Accessed May 3, 2024. http://www.ajms.in/index.php/ajms/article/view/216.