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1
Simplified Signs A Manual Sign-Communication System for Special Populations, Volume 1.
Published 2020DOAB: download the publication
DOAB: description of the publication
Electronic Book Chapter -
2
Simplified Signs A Manual Sign-Communication System for Special Populations, Volume 2.
Published 2020DOAB: download the publication
DOAB: description of the publication
Electronic Book Chapter -
3
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4