. (1987). -. (e17033). Journal of Science,University of Tehran(not publish), 3و4(0), e17033

. "-" .e17033 , Journal of Science,University of Tehran(not publish), 3و4, 0, 1987, e17033.

. (1987). '-', Journal of Science,University of Tehran(not publish), 3و4(0), e17033.

, "-," Journal of Science,University of Tehran(not publish), 3و4 0 (1987): e17033,

. -. Journal of Science,University of Tehran(not publish). 1987;3و4(0):e17033 (In Persian).