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. "-" .e30757 , Iranian International Journal of Science(Not Publish), 1, 0, 2001, e30757.

. (2001). '-', Iranian International Journal of Science(Not Publish), 1(0), e30757.

, "-," Iranian International Journal of Science(Not Publish), 1 0 (2001): e30757,

. -. Iranian International Journal of Science(Not Publish). 2001;1(0):e30757 (In Persian).