Emery, Edwin, editor
Dodd, Mead Company, 1968
Buku Teks
Emery, Edwin, editor
Dood, Mead & Company, 1971
Buku Teks
Zuckman, Harvey L., author
West Publishing, 1983
Buku Teks
McQuail, Denis, author
Longman, 1995
Buku Teks
Sandman, Peter M., author
Prentice-Hall, 1976
Buku Teks