1. Entailment: The logic of relevance and necessity;Anderson,1975
2. Bibliography Jean Piaget,1989
3. Aristotle. (c. 325 BC) (1987). On the soul. In J. Ackrill (Ed.), A new Aristotle reader (pp. 161–205). Oxford: Oxford University Press.
4. Thought and things: A study of the development and meaning of thought or genetic logic;Baldwin,1911
5. Reconsidering the role of overcoming perturbations in cognitive development: Constructivism and consciousness;Becker;Human Development,2004