%0 Journal Article
%A farahani, ali, Arjman nia, Ali Akbar, Afrouz, Gholoamali, hasanzadeh, saeed
%T Content analysis of mathematics books of mentally retarded students
%J Journal of Knowledge Studies
%V 4
%N 15
%P 53-66
%D 2012
%R 
%U https://sanad.iau.ir/fa/Article/1041027