Bailey, Robert W.
Prentice-Hall, 1982
Buku Referensi
Freivalds, Andris
McGraw-Hill, 2009
Buku Teks
Taylor & France, 1999
Buku Teks
Sanders, Mark S.
McGraw-Hill , 1993
Buku Teks
edited by Jan Noyes and Matthew Bransby
Institution of Engineering and Technology, 2001
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