Wissenschaft 16 11 2011(DAAD-Äthiopien) - MP3-StereoTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoYewhala, Tekle6 ኅዳር 2004ረቡዕ፣ ኅዳር 6 2004https://p.dw.com/p/13BoMማስታወቂያ