references
- American–Speech–Language–Hearing Association . 2002 . Augmentative and alternative communication . Knowledge and skills for service delivery , Retrieved from www.asha.org/policy
- Schlosser , RW , Wendt , O , Bhavnani , S and Nail-Chiwetalu , BJ . 2006 . The use of information seeking strategies in evidence-based practice: The case of pearl growing . International Journal of Language & Communication Disorders , 41 : 567 – 582 .