Conason, Joe
Man of the world : the further adventures of Bill Clinton
Simon & Schuster, 2016
 Buku Teks
Cassell's encyclopaedia of world literature; Vol. II
edited by S.H. Steinberg
Funk & Wagnalls, 1954
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Williamson, Bill
The temper of the times: British Society since world war II/Bill Williamson
Oxford Basil Balckwell 1990,
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Lumley, John L.
Engines: An Introduction
Cambridge University Press, 1999
 eBooks
Fraas, Arthur P.
Combustion engines
McGraw-Hill, 1948
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