![PDF] Comparative efficacy of the Picture Exchange Communication System (PECS) versus a speech-generating device: Effects on requesting skills | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/91551470623940608fb010eb93ac31530f558c4b/3-Table1-1.png "PDF] Comparative efficacy of the Picture Exchange Communication System (PECS) versus a speech-generating device: Effects on requesting skills | Semantic Scholar")
PDF] Comparative efficacy of the Picture Exchange Communication System (PECS) versus a speech-generating device: Effects on requesting skills | Semantic Scholar
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The Picture Exchange Communication System Training Manual: Lori Frost, Andy Bondy, Ph. D., Andy Bondy, Ph. D.: 9781928598299: Amazon.com: Books
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Picture Exchange Communication System Training Manual (PECS): Frost, Lori, Bondy, Andrew: 9781928598053: Amazon.com: Books
Untitled Document
The Picture Exchange Communication System Training Manual: Lori Frost, Andy Bondy, Ph. D., Andy Bondy, Ph. D.: 9781928598299: Amazon.com: Books
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PECS Picture Exchange Communication System Is a Systematic approach to teaching communication created by Lori Frost, M.S., CCC/SLP and Andy Bondy, Ph. - ppt download
Frost, L. & Bondy, A. (2002). The Picture Exchange Communication System ( PECS) Training Manual, 2nd Edition. Newark, DE. Pyramid Products, Inc. - Pyramid Educational Consultants Pyramid Educational Consultants
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Picture Exchange Communication System Training Manual (PECS): Frost, Lori, Bondy, Andrew: 9781928598053: Amazon.com: Books
