奧羅莫語 Hildesheim; New York: G. Olms. 1973 [1872]. ISBN 3-487-06556-8. Roba, Taha M. Modern Afaan Oromo grammar : qaanqee galma Afaan Oromo. Bloomington, IN:
對Google的批評your Google Web History Before New Policy Implemented" (页面存档备份,存于互联网档案馆), Taha Ali Adil, March 1, 2012 "Google May Be Sued Over Manipulating Search Results"