A Comparison of Picture Exchange and Speech-Generating Devices: Acquisition, Preference, and Effects on Social Interaction

Author: Sigafoos Jeff   Green Vanessa   Payne Donna   Son Seung-Hyun   O'Reilly Mark   Lancioni Giulio  

Publisher: Informa Healthcare

ISSN: 0743-4618

Source: Augmentative & Alternative Communication, Vol.25, Iss.2, 2009-06, pp. : 99-109

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