ሳይንስአወዛጋቢው የጤፍ የባለቤትነት መብት ክርክርTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስTesfalem Waldyes Erago27 የካቲት 2011ረቡዕ፣ የካቲት 27 2011https://p.dw.com/p/3EYtdማስታወቂያ