. (1988). -. (e16657). Journal of Science,University of Tehran(not publish), 1 و 2(0), e16657

. "-" .e16657 , Journal of Science,University of Tehran(not publish), 1 و 2, 0, 1988, e16657.

. (1988). '-', Journal of Science,University of Tehran(not publish), 1 و 2(0), e16657.

, "-," Journal of Science,University of Tehran(not publish), 1 و 2 0 (1988): e16657,

. -. Journal of Science,University of Tehran(not publish). 1988;1 و 2(0):e16657 (In Persian).