by Obaje, S O, Akpoborie, I A, Ugbe, F C, Onugba, A
Published in Earth science research (01.02.2015)

by Onugba, A, Aboh, H.O
Published in Science world journal (25.02.2010)

by Obaje, S.O., Akpoborie, I.A., Ugbe, F.C., Onugba, A.
Published in Earth science research (27.01.2015)

by V. A. Okwoche, C. P. O. Obinne, J. A. Onugba
Published in Asian Journal of Agricultural Sciences (10.09.2011)

by Nwankwo, U. J. Victor, Jibiri, N. N, Dada, S. S, Onugba, A. A, Ushie, P
Year of Publication 04.10.2012

by Nwankwo, U J Victor, Jibiri, N N, Dada, S S, Onugba, A A, Ushie, P
Published in arXiv.org (07.10.2012)