1. BARKER, R.G. Ecology and motivation. InNebraska symposium on motivation 1960, M.R. Jones (Ed.). Lincoln: University of Nebraska Press, 1960.
2. BARKER, R.G.Ecological psychology. Stanford: Stanford University Press 1968.
3. BERLINER, D.C. & ROSENSHINE, B. The acquisition of knowledge in the classroom. InSchooling and the acquisition of knowledge, R.C. Anderson, R.J. Spiro & W.E. Montague (Eds.). New York: John Wiley & Sons, 1977.
4. BROPHY, J.E. Teacher behaviour and its effects.Journal of Educational Psychology, 1979, 71, 737–750.
5. CAPIE, W.R., DILLASHAW, F.G. & OKEY, J.R. Keeping students “On Task”.Science Teacher, 1979, 46 31–32.