by Essien, J.P., Akpan, E.J., Essien, E.P.
Published in Bioresource technology (01.09.2005)

by Essien, J.P., Essien, V., Olajire, A.A.
Published in Environmental research (01.08.2009)

by Ita, B.N., Ebong, G.A., Essien, J.P., Eduok, S.I.
Published in Pakistan journal of nutrition : PJN (2008)

by Ebong, G.A., Etuk, H.S., Essien, J.P.
Published in Journal of applied sciences (Asian Network for Scientific Information) (15.10.2007)

by Essien, J.P, Ebong, G.A, Akpan, E.J
Published in Journal of applied science & environmental management (20.08.2009)

by Essien, J.P, Odoemena, C.S, Essien, E.P
Published in Tropical science (1999)

by Essien, J P, Ubom, R M
Published in The Environmentalist (01.12.2003)