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

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LL-MAP (Language and Location: A Map Accessibility Project) . Anthony Aristar and Helen Aristar-Dry and Yichun Xie (2012) · http://llmap.org

Akoye triglot dictionary . Henry Whitney (1995) · http://www-01.sil.org/pacific/png/abstract.asp?id=52509

Akoye grammar essentials . Henry Whitney and Virginia Whitney (1991) · http://www-01.sil.org/pacific/png/abstract.asp?id=52560

Akoye Phonology Essentials . Henry Whitney and Virginia Whitney (2000) · http://www-01.sil.org/pacific/png/abstract.asp?id=928474547811