Firdausi, M.F.A. and Rosnawati, E. 2020. Enforcement of Law Number 22 of 2009 concerning Road Traffic on Vehicle Speed ​​Limits on Toll Roads. Indonesian Journal of Public Policy Review. 11, (Jul. 2020), 10.21070/ijppr.v11i0.1164. DOI:https://doi.org/10.21070/ijppr.v11i0.1164.