McMurry, John, author
Prentice-Hall, 2010
Buku Teks
Petrucci, Ralph H., author
Pearson Prentice Hall, 2007
Buku Teks
Ebbing, Darrell D.
Houghton Miffiln, 1987
Buku Teks
Seager, Spencer L., author
Brooks/Cole, 2008
Buku Teks
Ouellette, Robert J., author
Prentice-Hall, 1997
Buku Teks