. (1977). -. (e16027). Journal of Science,University of Tehran(not publish), 3و4(0), e16027

. "-" .e16027 , Journal of Science,University of Tehran(not publish), 3و4, 0, 1977, e16027.

. (1977). '-', Journal of Science,University of Tehran(not publish), 3و4(0), e16027.

, "-," Journal of Science,University of Tehran(not publish), 3و4 0 (1977): e16027,

. -. Journal of Science,University of Tehran(not publish). 1977;3و4(0):e16027 (In Persian).