ሳይንስየመረጃ ሳጥኑ ምርመራ ቢያንስ አንድ ወር ይፈጃልTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስYohannes Geberegziabher11 መጋቢት 2011ረቡዕ፣ መጋቢት 11 2011https://p.dw.com/p/3FMQSማስታወቂያ