K. Ambak, H. Hashim, I. Yusoff, and B. David, “An Evaluation on the Compliance to Safety Helmet Usage among Motorcyclists in Batu Pahat, Johor”, IJIE, vol. 2, no. 2, Sep. 2011, Accessed: Aug. 07, 2026. [Online]. Available: https://journal.uthm.edu.my/index.php/ijie/article/view/208