– Oct. 2008 Omdurman Veterinary Hospital , Khartoum , Sudan .

– Sept.-Oct. 2009 Central Veterinary Research Laboratory , soba , Khartoum , Sudan .

– Oct. 2010 University Veterinary Hospital , University Putra Malaysia ( UPM ) , Selangor , Malaysia .

– Oct. 2011 Lana for Veterinary Services co.ltd. , Khartoum , Sudan .