. (1980). -. (e16210). Journal of Science,University of Tehran(not publish), 3و4(0), e16210

. "-" .e16210 , Journal of Science,University of Tehran(not publish), 3و4, 0, 1980, e16210.

. (1980). '-', Journal of Science,University of Tehran(not publish), 3و4(0), e16210.

, "-," Journal of Science,University of Tehran(not publish), 3و4 0 (1980): e16210,

. -. Journal of Science,University of Tehran(not publish). 1980;3و4(0):e16210 (In Persian).