Endangered Languages Catalogue Project. Compiled by research teams at University of Hawai'i Mānoa and Institute for Language Information and Technology (LINGUIST List) at Eastern Michigan University . (2012) ·

Atlas of the World’s Languages in Danger . Christopher Moseley (ed.) (2010) · UNESCO Publishing http://www.unesco.org/culture/en/endangeredlanguages/atlas

World Oral Literature Project . http://www.oralliterature.org

"Documentation and description of Bierebo, a Southern Oceanic language of Vanuatu" HRELP Abstract . Budd, Peter (2005) · http://www.hrelp.org/grants/projects/index.php?projid=64

Australasia and the Pacific ( pp. 425-578 ) . Stephen A. Wurm (2007) · In Atlas of the World's Endangered Languages edited by C. Moseley · London & New York: Routledge

Ethnologue: Languages of the World, 16th Edition (2009) . (2009) · edited by M. Paul Lewis · SIL International http://www.ethnologue.com/

Personal Communication on Bierebo . Pete Budd (2014) ·