In this research, we arise the various methods along with a new concept in order to enhance convention turbofan engine efficiency therefore less fuel consumption, less engine exhausts moreover low operating noise level.
 "International Crude Oil Market Handbook", Energy Intelligence Group, 2011
 Connors, Jack (2010). The Engines of Pratt & Whitney: A Technical History. Reston. Virginia: American Institute of Aeronautics and Astronautics. ISBN 978-1-60086-711-8.
 Henderson and Blazowski, pp. 119-20.
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