deafness.about.com/od/literacy/a/deafliteracy.htm

http://clerccenter.galladuet.edu/KidsWorldDeafNet/e-docs/Keys/Keys-manipulative.pdf

webpages.csus.edu/~sac27542/Research_Paper_rough.doc

angelramosfoundation.org/index.html

oips.gallaudet.edu/newsletter02/ELIBarbara.htm

www.deaflinx.com/DeafEd/literacy.html

oips.gallaudet.edu/newsletter/ManipulativeVisualLanguage.html