ሳይንስ በ2015To play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoMantegaftot Sileshi Siyoum19 ታኅሣሥ 2008ማክሰኞ፣ ታኅሣሥ 19 2008https://p.dw.com/p/1HVrVማስታወቂያ