1. Balkin, S., Ord, J.K., 2000. Assessing the Impact of Speed Limit Increases on Fatal Interstate Crashes. Consumers Union, Washington, DC.
2. Box, G.E.P., Jenkins, G.M., Reinsel, G.C., 1994. Time Series Analysis: Forecasting and Control, Third ed. Prentice-Hall, Englewood Cliffs, NJ.
3. Chang, G.-L., Carter, E.C., Chen, C.-H., 1991. Safety Impacts of the 65-mph Speed Limit on Interstate Highways. AAA Foundation for Traffic Safety, Washington, DC.
4. Intervention analysis for the impacts of the 65 mph speed limit on rural Interstate highway fatalities;Chang;J. Saf. Res.,1993
5. Najjar, Y.M., Stokes, R.W., Russell, E.R., Ali, H.E., Zhang, X., 2000. Impact of New Speed Limits on Kansas Highways. Kansas Department of Transportation K-TRAN KSU-98-3. Topeka, KS.