Bibliography

Bibliography of Vitality:
Lewis, M. Paul (ed.). 2009. Ethnologue: Languages of the World, 16 edn. http://www.ethnologue.com/home.asp. (15 February, 2011.)
Bibliography of Locations:
Kerstin Winkelmann. 1994. "Les Classes Nominales Et Le Système D'affixation En Khe (langue Voltaïque)." In Mitteilungen des Sonderforschungsbereichs 268: Burkina Faso und Nordostnigeria, edited by Herrmann Jungraithmayr and Gudrun Miehe. Rüdiger Köppe.
Bibliography of Context:
Lewis, M. Paul (ed.). 2009. Ethnologue: Languages of the World, 16 edn. http://www.ethnologue.com/home.asp. (15 February, 2011.)