Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·

Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/

Personal Communication on sign languages . James Woodward (2012) ·

Glottolog . http://www.glottolog.org/glottolog/

A Sociolinguistic Profile of the Jamaican Deaf Community . Elizabeth Parks and Christina Epley and Jason Parks (2011) · SIL Electronic Survey Report · http://www-01.sil.org/SILESR/2011/silesr2011-026.pdf

Colour signs in two indigenous sign languages . Dany Adone and Anastasia Bauer and Keren Cumberbatch and Elaine L. Maypilama (2012) · In Sign Languages in Village Communities edited by Ulrike Zeshan and Connie de Vos · de Gruyter