ዶክተርም ሳትባል መተንተን ትችላለህ ና የአገርን ስም ኣታራክስ! የተረገመ ትዉልድ!
https://cen.acs.org/research-integrity/ ... ewsrss_cenEthiopia has highest rate of scientific paper retraction
https://cen.acs.org/research-integrity/ ... ewsrss_cenEthiopia has highest rate of scientific paper retraction