ሳይንስና ሥነ ቴክኒክ በ 2014 ጎ. ዓመትTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoYewhala, Tekle8 ታኅሣሥ 2007ረቡዕ፣ ታኅሣሥ 8 2007https://p.dw.com/p/1E6URማስታወቂያ