1. British Medical Journal, 1973. Road Accidents Epidemic, 17 February 1973, 370–371.
2. Donário A.A, dos Santos R.B, 2000. The Economic and Social Cost of Road Accidents: The Portuguese Case, Chart. 7, 1.
3. A Cost-effective Path to Road Safety;Ghislanzoni,2013
4. Quantifying the Impact of Road Lighting on Road Safety—A New Zealand Study;Jackett;IATSS Res.,2013
5. Mohan, W.D, 2002. Social Cost of Road Traffic Crashes in India, in: Proc. First Safe Community Conf. Cost Inj. Viborg, Denmark, 33–38.