Soon, Adrian Bee Tiong, Kian Sek Tee, Mohammed Ibrahim M. H. Awad, and Chin Fhong Soon. 2018. “Oncoming Vehicle Detection With Variable-Focus Liquid Lens”. International Journal of Integrated Engineering 10 (8). https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/3521.