1. Bandura, A. & Walters, R.H. (1963). Social learning and personality development. New York: Holt, Rinehart & Winston.
2. Bowlby, J. (1969/82). Attachment. New York: Basic Books.
3. Bruner, J.S. (1990). Acts of meaning. Cambridge: Harvard University Press.
4. Carpendale, M. & Muller, U. (2004). Social interaction and the development of rationality and morality. In M. Carpendale, & U. Muller (Eds.), Social interaction and the development of knowledge (pp. 1-18). Mahwah: Erlbaum.
5. Chapman, M. (1991). The epistemic triangle: Operative and communicative components of cognitive development. In M. Chandler, & M. Chapman (Eds.), Criteria for competence: Controversies in the conceptualization and assessment of children?s abilities (pp. 209-228). Hillsdale: Erlbaum.