Abdul Jalil, Nur Zalikha, et al. “A Case Study: The 85th Percentile Operational Speed of a Two-Lane Rural Highway at Different Road Segments for Different Speed Limit Signage Colours”. Journal of Advanced Vehicle System , vol. 13, no. 2, Jan. 2022, pp. 17-30, https://karyailham.com.my/index.php/javs/article/view/381.