by Ugbor, D. O., Okeke, F. N.
Published in Journal of the Geological Society of India (01.03.2017)

by Anosike, S., Ibuot, J. C., Obiora, D. N., Ugbor, D. O.
Published in International journal of environmental science and technology (Tehran) (01.12.2019)

by Ugbor, D.O., Okeke, F.N., Yumoto, K.
Published in Journal of African earth sciences (1994) (01.04.2016)

by F, C Odo, D, O Ugbor, P, E Ugwuoke
Published in International journal of physical sciences (16.01.2013)