Ponrahono Z, Mohd Isa N, Aris AZ, Harun R. THE TRAFFIC VOLUME AND LEVEL OF SERVICE (LOS) OF UNIVERSITI PUTRA MALAYSIA (UPM) SERDANG CAMPUS MAIN ACCESS. PM [Internet]. 2019 Sep. 4 [cited 2024 Nov. 5];17(10). Available from: https://mail.planningmalaysia.org/index.php/pmj/article/view/628