[stylist] descriminative against voices.

[Aziza]

Hi everyone,
I was wondering if anyone wouldhappen to have any suggestions of book that 
would have any information on the possibility that blind people are 
descriminative against voices. I'm writing a research project, and my 
question is, are blind people descriminative against voices much in the same 
way that sighted people can be descriminative against looks. I need to find 
two books that can shed light on this matter. I need to summarize 3 points 
from each book in my project.
Thanks guys.
Aziza