1. Australian Association of Speech and Hearing. (1994). Compe-tency-based standards for speech pathologists—entry /eve/. Melbourne: AASH.
2. A few well-chosen words
3. Beukelman, D. R. & Mirenda, P. (1998). Augmentative and alter-native communication: Management of severe communication disorders in children and adults (2nd ed.). Baltimore: Paul H. Brookes.
4. A statewide demographic survey of people with severe communication impairments