By Butt T. E.   in Environmental Technology

ISSN:1479-487X|30|14|1487-1501

Taylor & Francis Ltd‎(2009)‎

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By Butt T.E.   Oduyemi K.O.K.   in Environment International

ISSN:0160-4120|28|7|597-608

Elsevier‎(2003)‎

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