Best, B.J., Classificatory development in deaf children: Research a language and cognitive development Occasional Paper No. 15, Research, Development and Demonstration Centre in Education of Handicapped Children, University of Minnesota , 1973.
2.
Brown, K.S., Genetic Features of DeafnessJ. acoust. Soc. Amer. , 1973, 54, 569-575.
3.
Bruner, J.S., Olver, R., and Greenfield, P.Studies in Cognitive GrowthN.Y., Wiley1966.
4.
Fry, D.B., The development of the phonalogical system in the normal and the deaf child L. F. Smith and G. A. Miller (Eds.) The Genesis of Language , M.I.T. Press.1966.
5.
Fruth, Hans.Thinking without languageN.Y.: Free Press, 1966.
6.
Fruth, Hans.Linguistic deficiency and thinking: Research with deaf subjects, 1964-9Psychological Bulletin, 1971, 75, 58-72.
7.
Kahl, H.R., Language and Education of the Deaf. Centre for Urban Education , N. York1966.
8.
Lenneberg, E.H.The natural history of language L. F. Smith and G. A. Miller (Eds.) ibidem.
9.
Moores, D.F., Non-vocal systems of verbal behaviour In R.L. Schiefelhusch and L. L. Lloyd (Eds.) Language perspectives, acquisitic, retardation and intervention, Baltimore: University Park Press. 1960.
10.
Nickerson, R.S. and Stevens, K.N.Teaching speech to the deaf: Can a computer help?IEEE Transactions on Audio and Electroacoustics1973, 21, No. 5.
11.
Piaget, J.The Language and thought of the childRoutledge, 1959.
12.
Stoke, W.C., Sign language structure. Studies in Linguistics, Occasional Papers. 8Buffalo University Press, 1960.
13.
W.H.O., The prevalance of blindness and deaf-mutism in various countries, Epidemiological Vital Statistics Rep1953, 6, 1-32.
