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1دورية أكاديمية
المؤلفون: Bird, Matthew S.Aff1, Mlambo, Musa C., Wasserman, Ryan J.Aff3, Aff4, Dalu, Tatenda, Holland, Alexandra J., Day, Jenny A., Villet, Martin H., Bilton, David T.Aff1, Aff8, Barber-James, Helen M.Aff2, Aff7, Brendonck, LucAff9, Aff10
المصدر: Hydrobiologia: The International Journal of Aquatic Sciences. 827(1):89-121
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2دورية
المصدر: Journal of Apicultural Research; January 2003, Vol. 42 Issue: 3 p32-34, 3p