7Bennett,W.L.&Livingston,S.,“Editor's Introduction:A Semi-independent Press:Government Control and Journalistic Autonomy in the Political Construction of News”,Political Communication,2003,Vol.20,No.4.
7Onyebadi, Uche (2007). Towards an examination and expansion of the Agenda Setting theory. Conference Papers - International Communieation Assoeiation, 2007. Annual Meeting.
8McCombs, M. (2005) . A look at agenda- setting: Past, present and future. Journalism Studies, 6, 543 - 557.
9Weiss , W. (1968) The Impact of Mass Media, In G. Lindsay & E. Aronson(Eds. ), Handbook of Social Psychology(2nd ed. Vol. 5, 77 - 195), Reading, MA: Addison - Wesley.
10James, M. L., Wotring, C. E., & Forrest, E.J. (1995), An Exploratory Study of the Perceived Benefits of Elec- tronic Bulletin Board Use and Their Im- pact on Other Communication Activities, Journal of Broadcasting & Electronic Media, 39, 30 - 50.