By Okonkwo Jonathan   Maribe Flora   in The Environmentalist

ISSN:0251-1088|24|3|171-178

Springer Publishing Company ‎(2004)‎

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By Kefeni Kebede   Okonkwo Jonathan   in Environmental Science and Pollution Research

ISSN:0944-1344|21|6|4376-4386

Springer Publishing Company ‎(2014)‎

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By Okonkwo Jonathan O.   in Environmental Reviews

ISSN:1208-6053|21|2|85-92

NRC Research Press‎(2013)‎

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By Okonkwo Jonathan Okechukwu   Moja Shadung John   Forbes Patricia   in International Journal of Environment and Pollution

ISSN:0957-4352|36|4|350-366

Inderscience Publishers‎(2009)‎

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By Okonkwo Jonathan   Sibali Linda   McCrindle Rob   Senwo Zachary   in Environmental Chemistry Letters

ISSN:1610-3653|5|3|121-123

Springer Publishing Company ‎(2007)‎

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By Moyo Mambo   Okonkwo Jonathan O.   Agyei Nana M.   in Sensors

ISSN:1424-8220|12|1|923-953

MDPI‎(2012)‎

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By Daso Adegbenro P.   Fatoki Olalekan S.   Odendaal James P.   Okonkwo Jonathan O.   in Environmental Reviews

ISSN:1208-6053|18|1|239-254

NRC Research Press‎(2010)‎

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By Lwenje Salia M.   Okonkwo Jonathan O.   Mtetwa Victor S. B.   Gamedze Audrey G.   Mavundla Jabu A.   Sihlongonyane Mbuso M.   in International Journal of Environmental Health Research

ISSN:1369-1619|9|3|207-211

Taylor & Francis Ltd‎(1999)‎

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