3Rogers, E.M. (1966) : "Mass Media Exposure and Modernization among Colombian Peasants", The Public Opinion Quarterly.
4Tichenor, P.J., G.A.Donohue, C.N.Olien (1970) : "Mass Media Flow and Differential Growth in Knowledge", The Public Opinion Quarterly.
5Donohue, G.A., P.J. Tichenor, C.N.Olien. (1975) : Mass Media and Knowledge Gap: A Hypothesis Reconsidered, Communication Research, Vol.2, No.1.Janauary, Sage Publications, Inc.
6Ettema, J.S., F.G.Kline (1997): Deficits, Differenees, and Ceilings: Contingent Conditions for Understanding the Knowledge Gaps, Communication Research.
7Eveland, W. P., J.R.Dietram, A. Scheufele (2000) : Connecting News Media Use with Gaps in Knowledge and Participation", Political Communication.
8Gaziano, C. (1997) : "Forecast 2000: Widening Knowledge Gaps", Journalism and Mass Communication Quarterly, Summer: pp.237-264.
9Heronm, Le. J., &Sligo, F. (2005) : "Acquisition of simple and complex knowledge, a knowledge gap perspective", Educational Technology & Society.
10Djankov, S, C. McLiesh, T.Nenovam, and A. Shleifer (2002) : "Media as Industry: Economic foundation of Mass Communication", The Right to Tell: The Role of Mass Media in Economic Growth, the World Bank, Washington D.C.
