duirnal cycles; estuary; nutrients; surface waters; Nigeria von Isaac, IO, Udoessien, EI

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Preliminary observations on dissolved trace-metal concentrations and distributions in the surface waters of Quaiboe River Estuary, south-eastern Nigeria von Isaac, IO, Udoessien, EI, Ekop, AS

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Chemical estimation of some inorganic elements in selected tropical fruits and vegetables von Aremu, C.Y., Udoessien, E.I.

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Evaluation of the nutritive value of some commercial biscuits by chemical analysis von Ifon, E.T., Udoessien, E.I.

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Chemical studies on the unripe and ripe fruits of Dennettia tripatela (pepper fruit) von Udoessien, E.I., Ifon, E.T.

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