Luise A Hercus and Jeremy Beckett. "The Two Rainbow Serpents Travelling." Online: http://epress.anu.edu.au/titles/aboriginal-history/two_rainbow_citation.
Victoria Anna Sophie Nyst. A Descriptive Analysis of Adamorobe Sign Language (Ghana). PhD thesis, University of Amsterdam, 2007. Online: http://dare.uva.nl/document/93469.
Claire Bowern. 2011. "How Many Languages Were Spoken in Australia?" Online: http://anggarrgoon.files.wordpress.com/2011/12/austlangs-masterlanguage….
Grimes, Barbara. 2003. "New Caledonia Languages." In International encyclopedia of linguistics, edited by William Frawley. 1: 145-146. Oxford University Press.
Adelaar, Willem and Gustavo Solis Fonseca. 2010. "Highland South America and the Caribbean." In Atlas of the World’s Languages in Danger of Disappearing, edited by Christopher Moseley. UNESCO.