Firdausi, Muhammad Farrel Alaysia, and Emy Rosnawati. 2020. “Enforcement of Law Number 22 of 2009 Concerning Road Traffic on Vehicle Speed ​​Limits on Toll Roads: Penegakan UU Nomor 22 Tahun 2009 Tentang Lalu Lintas Jalan Terhadap Batas Kecepatan Kendaraan Dijalan Tol”. Indonesian Journal of Public Policy Review 11 (July):10.21070/ijppr.v11i0.1164. https://doi.org/10.21070/ijppr.v11i0.1164.