Vivian, John
Pearson and AB, 2007
Buku Teks
Dominick, Joseph R.
McGraw-Hill, 1993
Buku Teks
Dominick, Joseph R.
2005
Multimedia
edited by Wilbur Schramm
University of Illnois Press, 1954
Buku Teks
editor, Joseph F. Littell
McDougal, Littel and Company, 1976
Buku Teks