4Assistive Technology Act of 1998,SEC.3.United States of America[OL].[2006-04-06].http://www.section 508.gov/does/AT1998.html.
5RESNA Announces Certification For Professionals Who Serve Those with Disabilitie[OL].[2008-11-03].http://www.assistivetechnology.vcu.edu/2008/11/resna_announces_certification.html.