Classification
- WALS
- TNG > Omosan
- Glottolog
- Nuclear Trans New Guinea > Madang > Croisilles > Omosan
- Ethnologue
- Trans Newguinea > Madang > Croisilles > Pihom > Omosan
Sources
- Z'graggen 1980
- A Comparative Word List of the Northern Adelbert Range Languages, Madang Province, Papua New Guinea. Pacific Linguistics D-31. Canberra: Australian National University.