edited by Warren K. Agee, Phillip H. Ault, Edwin Emery
Harper and Row, 1982
Buku Teks SO
Emery, Edwin
Dood, Mead & Company, 1971
Buku Teks SO
Agee, Warren Kendall
1982
Buku Teks SO
Francois, William E.
Grid Inc., 1977
Buku Teks SO
McQuail, Denis
Collier-Macmillan, 1969
Buku Teks