1. WHO. World Report on Disability – Summary. 2011; Available from: http://www.who.int/disabilities/world_report/2011/report/en/.
2. Chisholm W, Vanderheiden G, Jacobs I. Web Content Accessibility Guidelines 1.0. World Wide Web Consortium – W3C. 1999; Available from: https://www.w3.org/TR/WAI-WEBCONTENT/.
3. Caldwell B, Cooper M, Guarino L, Vanderheiden G. Web Content Accessibility Guidelines (WCAG) 2.0. World Wide Web Consortium – W3C. 2008; Available from: https://www.w3.org/TR/WCAG20/.
4. Pereira I. Coronavirus restrictions put extra burden on the blind community: Experts. 2020; Available from: https://abcnews.go.com/Health/coronavirus-restrictions-put-extra-burden-blind-community-experts/story?id=69674998.
5. Languages of India. Available from: https://www.webindia123.com/india/people/language.htm.