German, D.J.1979. Word finding skills in children with learning disabilities . Journal of Learning Disabilities, 12:3 pp. 43-48.
2.
Johnson, D. and Myklebust, H.1967. Learning disabilities educational principles and practices . New York and London: Grune and Stratton.
3.
Wiig, E.H. and Semel, E.1980. Language assessment and intervention for the learning disabled. Columbus, Toronto, London, Sidney: Charles E. Merrill Publishing Company.
