The Kwerba family is clearly established. Its closest relative appears to be Isirawa. Mawes is added by Ross (2005), but not retained in Glottolog; Isirawa was rejected by Ross, but retained by Glottolog and by Donahue (2002).
- Greater Kwerba
- ? Mawes
- ? Isirawa
- Kwerba family
Capell (1962) proposed placing Kwerba and Isirawa in a Dani–Kwerba proposal, which was retained in Stephen Wurm's 1975 Trans–New Guinea phylum. Malcolm Ross (2005) removed them and linked them with another erstwhile branch of TNG in a Tor–Kwerba proposal. Glottolog accepts only the link with Isirawa as having been demonstrated.
- Nordhoff, Sebastian; Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2013). "Kwerbic". Glottolog 2.2. Leipzig: Max Planck Institute for Evolutionary Anthropology.
- Nordhoff, Sebastian; Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2013). "Mawes". Glottolog 2.2. Leipzig: Max Planck Institute for Evolutionary Anthropology.
- Ross, Malcolm (2005). "Pronouns as a preliminary diagnostic for grouping Papuan languages". In Andrew Pawley, Robert Attenborough, Robin Hide, Jack Golson, eds. Papuan pasts: cultural, linguistic and biological histories of Papuan-speaking peoples. Canberra: Pacific Linguistics. pp. 15–66. ISBN 0858835622. OCLC 67292782.
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