Wilson, E.M., author
Palgrave Macmillan, 1990
Buku Teks
Mays, Larry W., author
John Wiley & Sons, 2011
Buku Teks
Hwang, Ned H. C.
Prentice-Hall, 1987.
Buku Teks
Subramanya, K., author
McGraw-Hill, 2009
Buku Teks
Horvath, Imre D.
Wiley, 1994
Buku Teks