by Yagi, A.I, Razig, M.T.A
Published in Revue de zoologie et de botanique africaines (1972)

by Yagi, A.I, Razig, M.T.A
Published in Bulletin of epizootic diseases of Africa (1972)

by Yagi, A.I, Razig, M.T.A
Published in Cur Sci (1972)

by Watson, R.M, Razig, M.T.A, Cadir, F.A
Published in Bulletin (1975)

by Razig, M.T.A, Yagi, A.I, Hassan, F.A, Rahman, E.A
Published in Publication - Scientific, Technical and Research Commission. Organisation of African Unity (OAU) (01.06.1978)

by Razig M.T.A, Yagi A.I, Hassan F.A, Rahman E.A
Published in Publication - Scientific (1978)