by Ejike, B.U., Ukpai, O.M., Ihemanma, C.A., Ajuga, M.U., Eme, G.F.
Published in The Nigerian journal of parasitology (28.05.2022)

by Okosa, C., Ukpai, O.M., Lawrence, Q.O., Chukwuemeka, B.C., Ikpi, P.O.
Published in The Nigerian journal of parasitology (28.05.2022)

by Nwachukwu, P.C., Ohaeri, C.C., Ukpai, O.M., Irole-eze, O.P., Amaechi, E.C.
Published in Sri Lankan journal of biology (30.06.2018)

by Ubiaru, P.C., Ukpai, O.M., Ohaeri, C.C.
Published in The Nigerian journal of parasitology (04.04.2018)

by Amaechi, E.C, Ohaeri, C.C, Ukpai, O.M, Adegbite, R. A
Published in Momona Ethiopian Journal of Science (02.12.2016)

by A.C Amaechi, C.C Ohaeri, O.M Ukpai, P.C. Nwachukwu, U.K. Ukoha
Published in The bioscientist (Awka, Nigeria) (01.05.2014)