^Laurie Bauer, 2007, The Linguistics Student’s Handbook, Edinburgh
^Dutton, Tom. 2010. Reconstructing Proto Koiarian: The history of a Papuan language family. (Pacific Linguistics, 610.) Canberra: Research School of Pacific and Asian Studies, Australian National University
^
abPawley, Andrew; Hammarström, Harald (2018). "The Trans New Guinea family". In Palmer, Bill (ed.). The Languages and Linguistics of the New Guinea Area: A Comprehensive Guide. The World of Linguistics. Vol. 4. Berlin: De Gruyter Mouton. pp. 21–196.
ISBN978-3-11-028642-7.
Proto-Koiarian. TransNewGuinea.org. From Dutton, T.E. 2010. Reconstructing Proto Koiarian: The history of a Papuan language family, Canberra: Pacific Linguistics.
Proto-Koiariac. TransNewGuinea.org. From Dutton, T.E. 2010. Reconstructing Proto Koiarian: The history of a Papuan language family, Canberra: Pacific Linguistics.
Proto-Baraic. TransNewGuinea.org. From Dutton, T.E. 2010. Reconstructing Proto Koiarian: The history of a Papuan language family, Canberra: Pacific Linguistics.