. (1996). -. (e16279). Journal of Science,University of Tehran(not publish), 1(0), e16279

. "-" .e16279 , Journal of Science,University of Tehran(not publish), 1, 0, 1996, e16279.

. (1996). '-', Journal of Science,University of Tehran(not publish), 1(0), e16279.

, "-," Journal of Science,University of Tehran(not publish), 1 0 (1996): e16279,

. -. Journal of Science,University of Tehran(not publish). 1996;1(0):e16279 (In Persian).