ሳይንስአፍሪቃሳይንሳዊ አመጋገብ ለተሻለ ውጤትTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስአፍሪቃYohannes Gebre Egiziabher3 ግንቦት 2014ረቡዕ፣ ግንቦት 3 2014https://p.dw.com/p/4B8Amማስታወቂያ