References
- Frost , LA and Bondy , AS . 1994 . PECS: The Picture Exchange Communication System Training Manual , Cherry Hill, NJ : Pyramid Educational Consultants .
- Wilkinson , KM and Albert , A . 2001 . Adaptations of “Fast Mapping” for vocabulary intervention with augmented language users . Augmentative and Alternative Communication , 17 : 120 – 132 .