Document Type : Original articles
Authors
1 Zoology Department , Faculty of Science Demietta University
2 Environmental sciences - Environmental Sciences Department - Faculty of Sciences -Damietta University –Egypt
3 Environmental and Natural Resource Science , Omar Al-Mukhtar University, Libya
4 Chemistry Department, Faculty of Science, Omar Al –Mukhtar University, Libya.
5 Elkafrawey Street, New Damietta City, Damietta - Egypt
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