Mithal, G.K., author
Khanna, 1977
Buku Teks
Goedbloed, Jasper J.
Prentice-Hall, 1992
Buku Teks
Hayt, William H., author
McGraw-Hill , 2006
Buku Teks
Siegel, Daniel M.
Cambridge University Press, 1991
Buku Teks
Sarwate, V.V., author
John Wiley & Sons, 1993
Buku Teks