1. Hucho, W.H. Aerodynamics of Road Vehicles. 4th ed. Warrendale: Society of Automotive Engineers (SAE); 1998.
2. Snyder,R.H. Tire Rolling Losses and Fuel Economy. SAE Special Publication 1997; SAE Paper No.74.
3. http://www.environment.gov.au/settlements/transport/fuelguide/environment.html (accessed on 1 Feb, 2012).
4. Picard, R.W. Tires and Passenger Vehicle Fuel Economy. Washington: Transportation Research Board; 2006.
5. Cooper KR. Full-Scale Wind Tunnel Tests of Production and Prototype, Second-Generation Aerodynamic Drag-Reducing Devices for Tractor-Trailers. SAE Publication 2006; SAE Paper No. 2006-01-3456.