Graber, Doris A.
Congressional Quarterly Press, 1980
Buku Teks
Francois, William E.
Grid Inc., 1977
Buku Teks
edited by Jay G. Blumler and Elihu Katz
Sage, 1974
Buku Teks
edited by Warren K. Agee, Phillip H. Ault, Edwin Emery
Harper and Row, 1982
Buku Teks
[compiled by] Warren K. Agee, Phillip H. Ault, Edwin Emery
Harper & Row Publishers, 1986
Buku Teks