1. R. Littlewood, Novel Methods of Drag Reduction for Squareback Road Vehicles, Ph.D. thesis, Loughborough University, UK, 2013.
2. S.R. Sawyer, Experimental Investigation of Drag Reduction by Trailing Edge Tabs on a Square Based Bluff Body in Ground Effect, Ph.D. thesis, California Polytechnic State University, San Luis Obispo, CA, USA, 2015.
3. Review of passive drag reduction techniques for bluff road vehicles;Altaf;IIUM Eng. J.,2014
4. J. Patten, B. McAuliffe, W. Mayda, B. Tanguay, Review of Aerodynamic Drag Reduction Devices for Heavy Trucks and Buses, National Research Council Canada NRC Technical Report CSTT-HVC-TR 205, 2012, p. 3.
5. Underhood air duct design to improve A/C system performance by minimizing hot air recirculation;Song;SAE Int. J. Passeng. Cars - Mech. Syst.,2015