M. Miqdad A. Aziz, Pusparini D. A. Aziz and Izhar Salih (2016) “Development of Portable Traffic Lights System Using Radio Frequency, Infra-Red Sensor and Controller PIC 16F877A”, Journal of Engineering Technology, 4(1), pp. 66–70. Available at: https://ejournal.unikl.edu.my/index.php/jet/article/view/261 (Accessed: 14 June 2026).