References
- ANTHONY, A. The Edinburgh articulation test. Edinburgh & London: E. & S. Livingstone, 1971
- KILMINISTER, M.G.E. & LAIRD, E.M. Articulation development in children aged 3–9 years. Australian Journal of Human Communication Disorders, 1978, 6, 23–29
- MACDONALD, E.T. Articulation testing and treatment: A sensori-motor approach. Pittsburgh: Stanwix House, 1972
- PERKINS, W.H. Speech pathology: An applied behavioural science. St. Louis, Missouri: The C.V. Mosby Company, 1971
- Travis, L.E., (Ed) Handbook of speech pathology and audiology: New York: Appleton Century Crofts. 1971