グベ語群
(1981) Bibliography of Gbe - publications on and in the language Basel: Basler Afrika Bibliographien.
Gordon, Raymond G. Jr. (ed.) (2005) Ethnologue report for Gbe. (Ethnologue, 15th edition.) Retrieved May 11, 2005.
Greenberg, Joseph H. (1966) The Languages of Africa (2nd ed. with additions and corrections). Bloomington: Indiana University.
Greene, Sandra E. (2002) Sacred Sites: The Colonial Encounter. Bloomington, Indiana: Indiana University Press. ISBN 0-253-21517-X (online version)
Henrici, Ernst (1891) Lehrbuch der Ephe-Sprache (Ewe) Anlo-, Anecho- und Dahome-Mundart (mit Glossar und einer Karte der Sklavenküste). Stuttgart/Berlin: W.