Brainerd, C. (1978). Piaget's Theory of Intelligence. Englewood Cliffs, NJ: Prentice-Hall.
Bybee, R.W. & Sund, R.B. (1982). Piaget for Educators (2nd Ed). Columbus, OH: Charles Merrill.
Flavell, J. H. (1963). The Developmental Psychology of Jean Piaget. NY: Van Nostrand Reinhold.
Gallagher, J.M. & Reid, D.K. (1981). The Learning Theory of Piaget and Inhelder. Monterey, CA: Brooks/Cole.
Piaget, J. (1929). The Child's Conception of the World. NY: Harcourt, Brace Jovanovich.
Piaget, J. (1932). The Moral Judgement of the Child. NY: Harcourt, Brace Jovanovich.
Piaget, J. (1969). The Mechanisms of Perception. London: Rutledge & Kegan Paul.
Paiget, J. (1970). The Science of Education amd the Psychology of the Child. NY: Grossman.
Piaget, J. & Inhelder, B. (1969). The Psychology of the Child. NY: Basic Books.
Piaget, J. & Inhelder, B. (1973). Memory and intelligence. NY: Basic Books.
Wadsworth, B. (1978). Piaget for the Classroom Teacher. NY: Longman.