Agerholm, Margaret (1975) Handicaps and handicapped . Roy. Soc. Hlth. J., 95, 1, 3.
2.
Kershaw, J.D. (1961) Handicapped children. William Heinemann. Medical Books Limited, London. p. 207.
3.
Nigeria Census (1963) In Annual Statistical Bulletin, 1969, p. 7. Ministry of Health, Western State of Nigeria.
4.
North, N.L. (1960) on Pre-school Guardiance — Session at the 1960 Conference on the Care of the Deaf by the National Institute for the DeafLondon. (October 5th-7th, 1960 ).
5.
Ewing, A.W.G. and Ewing, E.C. (1964) Teaching deaf children to talk. University of Manchester Press, Washington, D.C., 7. p. 127.
