Cáceres, Natalia (2011) “ennu”, in Grammaire Fonctionnelle-Typologique du Ye’kwana[1], Lyon
Hall, Katherine (2007) “w-ennu-nə”, in Mary Ritchie Key & Bernard Comrie, editors, The Intercontinental Dictionary Series[2], Leipzig: Max Planck Institute for Evolutionary Anthropology, published 2021