Barber, Alfred W.
Parker, 1976
Buku Teks
Armstrong, G.A.
Institution of Engineering and Technology, 2007
eBooks
Nilsson, James William
Addison-Wesley, 1996
Buku Teks
edited by Howard Bierman
McGraw-Hill, 1983
Buku Teks
Coughlin, Robert F.
Prentice-Hall, 1968
Buku Referensi