Mat Saad, Azaruddin, and Ahmad Raqib Ab Ghani. “Risk Assessment and Safety Perceptions In The Motorcycle Lane of Butterworth - Kulim Expressway: A Case Study”. Recent Trends in Civil Engineering and Built Environment 6, no. 2 (February 13, 2026): 60–70. Accessed April 7, 2026. https://penerbit.uthm.edu.my/periodicals/index.php/rtcebe/article/view/15272.