Asumbuo (Asubuo in local orthography; Asumboa or Asuboa in some sources) is a nearly extinct language spoken on the island of Utupua, in the easternmost province of the Solomon Islands.[2]
Tryon, Darrell (1994). "Language contact and contact-induced language change in the Eastern Outer Islands, Solomon Islands". In Tom Dutton; Darrell Tryon (eds.). Language Contact and Change in the Austronesian World. Berlin: Mouton de Gruyter. pp. 611–648. ISBN978-3-11-088309-1..