Bibliography
Bibliography of Vitality:
1998. "1994 Population and Housing Census of Ethiopia, Results At Country Level." 1: Central Statistical Office. Online: https://www.msu.edu/~hudson/Ethlgslist.htm.
Bibliography of Locations:
Moseley, Christopher (ed.). 2010. Atlas of the World’s Languages in Danger, 3rd edn. http://www.unesco.org/culture/en/endangeredlanguages/atlas. (03 June, 2011.)
Bibliography of Context:
1998. "1994 Population and Housing Census of Ethiopia, Results At Country Level." 1: Central Statistical Office. Online: https://www.msu.edu/~hudson/Ethlgslist.htm.