by Aradaib, I.E, Mohemmed, M.E.H, Sarr, J.A, Idris, S.H, Ali, N.O.M, Majid, A.A, Karrar, A.E
Published in Veterinary research communications (01.04.2006)

by Eisa, M., Karrar, A.E., Rahim, A.H.Abdel
Published in Transactions of the Royal Society of Tropical Medicine and Hygiene (1980)

by Hassan, A.K.M, Karrar, A.E. (Vet. Res. Adminstration, PO Box 8667, Khartoum (Sudan))
Published in Tropical Animal Health and Production (UK) (1988)

by Eisa, M, Karrar, A E, Abdel Rahim, A H
Published in British veterinary journal (01.03.1979)