Signed languages of Mexico http://www-01.sil.org/mexico/lenguajes-de-signos/00i-signed-languages.htm ↩
Esperanza Morales-López, "Sign bilingualism in Spanish deaf education", in C. Plaza Pust & E. Morales-López, eds, 2008, Sign Bilingualism: Language Development, Interaction, and Maintenance in Sign Language Contact Situations ↩