Griffin, Ricky W., author
Prentice-Hall, 2002
Buku Teks
Wheeler, Bayard O.
Harper & Row. Publisher, 1968
Buku Teks
Harbison, Frederick Harris, author
McGraw-Hill, 1965
Buku Teks
Gargiulo, Terence L.
Pfeiffer, 2006
Multimedia
McGraw-Hill Book Company, Inc., 1954
Buku Teks