ሳይንስየኢትዮጵያዊዉ ሳይቲስት መሸለምTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስMantegaftot Sileshi Siyoum16 ጥቅምት 2009ረቡዕ፣ ጥቅምት 16 2009https://p.dw.com/p/2Rinoማስታወቂያ