Firdausi, Muhammad Farrel Alaysia, and Emy Rosnawati. “Enforcement of Law Number 22 of 2009 Concerning Road Traffic on Vehicle Speed ​​Limits on Toll Roads”. Indonesian Journal of Public Policy Review 110 (July 31, 2020): 10.21070/ijppr.v11i0.1164. Accessed April 28, 2024. https://ijppr.umsida.ac.id/index.php/ijppr/article/view/1164.