Koiwat
[aka Sawos]Classification: Sepik
·endangered
Classification: Sepik
·endangered
The Languages of the Sawos Region (New Guinea) ( pp. 6-16 ) . Staalsen, Philip (1975) · Anthropos.
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
Glottolog 2.3 . Hammarström, Harald & Forkel, Robert & Haspelmath, Martin & Nordhoff, Sebastian (2014) · http://glottolog.org