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) ·

How many languages were spoken in Australia? . Claire Bowern (2011) · http://anggarrgoon.files.wordpress.com/2011/12/austlangs-masterlanguagelist-dec2011.xlsx

Pride and identity: Reviving Indigenous languages . Park, Andy (2013) · SBS TV http://www.sbs.com.au/news/article/2013/05/06/pride-and-identity-reviving-indigenous-languages

Ethnologue: Languages of the World, 18th Edition . (2015) · edited by Lewis, M. Paul, Gary F. Simons, and Charles D. Fennig · SIL International http://www.ethnologue.com

A Vocabulary of the Parnkala Language . Schürmann, C. W. (1844) · George Dehane