ሳይንስግብርና ሚኒስቴር “ድሮኖችን” መጠቀም ጀምሯልTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስTesfalem Waldyes Erago24 ታኅሣሥ 2011ረቡዕ፣ ታኅሣሥ 24 2011https://p.dw.com/p/3Aw1Oማስታወቂያ