Adele at Ethnologue (18th ed., 2015) (subscription required)
gillbt.org
"Alphabets". Ghana Institute of Linguistics, Literacy and Bible Translation. 2005. Archived from the original on 15 March 2007.
huma-num.fr
corporan.huma-num.fr
Jacques Rongier, ed. (1998). Dictionnaire Français-Adele(PDF) (in French). Abidjan: Institut de Linguistique appliquée, Université nationale de Côte d’Ivoire.
web.archive.org
"Alphabets". Ghana Institute of Linguistics, Literacy and Bible Translation. 2005. Archived from the original on 15 March 2007.