The No Significant Difference Phenomenon
Russell, T. L. (1999) The No Significant Difference Phenomenon Raleigh, NC: North Carolina State University, Office of Instructional Telecommunication
Interaction of Media, Cognition and Learning
Salomon, G. (1979) Interaction of Media, Cognition and Learning San Francisco: Jossey Bass
Big Media, Little Media
Schramm, W. (1974) Big Media, Little Media San Francisco: Sage