Zulqarnain Hakim Abd Jalal, Muhammad, Wan Laailatul Hanim Mat Desa, Mohd Kamal Mohd Nawawi, and Ruzelan Khalild. “Discrete-Event Simulation of Road Traffic Congestion to Support Green Supply Chain”. International Journal of Engineering & Technology 7, no. 3.20 (September 1, 2018): 377–380. Accessed May 3, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/20575.