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Date: 2009-09-17 21:18:57Health Assistive technology Augmentative and alternative communication Braille Digital typography Perkins School for the Blind National Library Service for the Blind and Physically Handicapped DAISY Digital Talking Book Audiobook Disability Blindness Accessibility | Add to Reading ListSource URL: www.perkins.orgDownload Document from Source WebsiteFile Size: 1,05 MBShare Document on Facebook |