1. Hayes, S.C. (1993). Analytic goals and the varieties of scientific contextualism. In S.C. Hayes , L.J. Hayes , H.W. Reese & T.R. Sarbin (Eds.) Varieties of scientific contextualism (pp.11–27). Reno, NV: Context Press.
2. Skinner, B.F. (1969). Contingencies of reinforcement: A theoretical analysis. New York: Appleton-Century-Crofts.
3. Zettle, R.D. , Hayes, S.C. , Barnes-Holmes, D. & Biglan, A. (Eds.) (2016). The Wiley handbook of contextual behavioral science. Hove: Wiley & Sons.