References



[Martin, F.N. (1997). Introduction to Audiology. Boston:Allyn and Bacon. 454-455

Valente, M., Hosford-Dunn, H & Roeser, R.J. (2000) Audiology Treatment. New York: Thieme. 581-599

Atlantic Coast Ear Specialists (Virginia). Tell me about assistive listening devices  [http://www.earaces.com/ald.htm]

Northeast Technical Assistance Center.   College of Rochester Institute of Technology (New York).

[http://www.netac.rit.edu/publication/tipsheet/alds.html]