1. Adams, E. (1969). ?Field Evaluation of the German CAI Lab,? in Atkinson, R. C. and Wilson, H., eds., Computer-assisted Instruction: A Book of Readings. New York: Academic Press.
2. Allen, W. H. (1971). ?Instructional Media Research: Past, Present, and Future,? A V Communication Review 19.
3. Anderson, B. D. and Greenburg, E. (1972). ?Educational Production Functions for Teacher-Technology Mixes: Problems and Possibilities.? Program on Application of Communications Satellites to Educational Development, Washington University.
4. Armsey, J. W. and Dahl, N. C. (1973). An Inquiry into the Uses of Instructional Technology. New York: The Ford Foundation.
5. Attiyeh, R. and Lumsden, K. G. (1969). ?The Efficiency of Programmed Learning in Teaching Economics: The Results of a Nationwide Experiment,? American Economic Review. 59: 217?224.