ስደተኛ ሣይንቲስቶች በጀርመንTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoMantegaftot Sileshi Siyoum1 ጥቅምት 2008ሰኞ፣ ጥቅምት 1 2008https://p.dw.com/p/1GmxEማስታወቂያ