Jehad, A.E., A. Ismail, M.N. Borhan, and S.Z. Ishak. 2018. “Various Scenarios Prediction of Contraflow Operation under Heterogeneous Traffic Condition by Using VISSIM Microscopic Simulation”. International Journal of Engineering & Technology 7 (4.28): 338-43. https://doi.org/10.14419/ijet.v7i4.28.22611.