The Sumba–Hawu languages are all closely related. Blust (2008)[3] found convincing evidence for linking Kambera (representing the Sumba languages) with Hawu.
^Klamer, Marian (2005). "Kambera". In Adelaar, Karl Alexander; Himmelmann, Nikolaus (eds.). The Austronesian Languages of Asia and Madagascar. London: Routledge.