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ISSN:0990-7440|6|2|115-137

Edp Sciences‎(2010)‎

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By Asuquo F. Emile   Ewa-Oboho Ita   Asuquo Ekaete F.   Udo Paul J.   in The Environmentalist

ISSN:0251-1088|24|1|29-37

Springer Publishing Company ‎(2004)‎

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