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

Language Endangerment in West Africa: Its Victims and Causes . G. Tucker Childs (2006) · In The Joy of Language: Proceedings of a symposium honoring the colleagues of David Dwyer on the occasion of his retirement https://www.msu.edu/~dwyer/16-Childs.doc

Une grammaire pratique avec phonologie et dictionnaire de kwatay (parler du village de Diémbéring, basse Casamance, Sénégal) . Payne, Stephen (1992) · Dakar: SIL

L'ensemble joola: 1.~le kwatay . J. L. Doneux (1976) ·