By Abdel Magid H.M.   in Environment International

ISSN:0160-4120|23|2|247-251

Elsevier‎(1997)‎

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By El Tilib A.M.A.   El Mahi Y.E.   Abdel Magid H.M.   Ahmed B.A.M.   in Journal of Arid Environments

ISSN:0140-1963|31|1|115-125

Academic Press‎(1995)‎

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