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References
1.
Piaget, J.
Science of education and the psychology of the child . New York : Orion Press , 1970 .
2.
Stephens, W.
The education and training of the mentally retarded . April, 1966 , 1, No. 2.
3.
Verizzo, O.
Conceptions of conservation and reversibility in children of very superior intelligence . School Science and Mathematics , Jan., 1970 .
4.
Wadsworth, B.J.
Piaget's theory of cognitive development . New York : David McKay & Co., 1971 .