M.A. Dereje Terefe Gemechun väitös 8.5.2010
M.A. Dereje Terefe Gemechun väitös "The implementation of a multilingual education policy in Ethiopia: The case of Afaan Oromoo in primary schools of Oromia Regional State"
M.A. Dereje Terefe Gemechun väitös "The implementation of a multilingual education policy in Ethiopia: The case of Afaan Oromoo in primary schools of Oromia Regional State"