- Keller, Helen. The Story of My Life. New York: Dover Publications Inc., 1996.
- http://www.biography.com/people/helen-keller-9361967#death-and-legacy
- Vilaynur S. Ramachandran, Diane Rogers-Ramachandran . "When Blindness Is in the Mind, Not the Eyes." Scientific American . December 1, 2008. February 15, 2016. <http://www.scientificamerican.com/article/when-blindness-is-in-the-mind/>.
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