Jumari, M.Z.I. (2022) “The Signal Warning Detector (SWAD) for Sustainable Working Environment at Highways”, International Journal of Integrated Engineering, 14(2), pp. 157–163. Available at: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/11139 (Accessed: 8 April 2026).