ሳይንስየሐሮማያ ዩኒቨርሲቲ ጎመን መሰሉ ቻያ ተክል ላይ ምርምር እያደረገ ነውTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስMessay Teklu15 ጥር 2011ረቡዕ፣ ጥር 15 2011https://p.dw.com/p/3C3eDማስታወቂያ