edited by Wilbur Schramm
University of Illnois Press, 1954
Buku Teks SO
Emery, Edwin
Dodd, Mead Company, 1968
Buku Teks SO
Zuckman, Harvey L.
West Publishing, 1983
Buku Teks
Edited by Ralph O. Nafziger; David M. White
Louisiana State University Press, 1963
Buku Teks SO
edited by Warren K. Agee, Phillip H. Ault, Edwin Emery
Harper and Row, 1982
Buku Teks SO