. (1988). -. (e16648). Journal of Science,University of Tehran(not publish), 1 و 2(0), e16648

. "-" .e16648 , Journal of Science,University of Tehran(not publish), 1 و 2, 0, 1988, e16648.

. (1988). '-', Journal of Science,University of Tehran(not publish), 1 و 2(0), e16648.

, "-," Journal of Science,University of Tehran(not publish), 1 و 2 0 (1988): e16648,

. -. Journal of Science,University of Tehran(not publish). 1988;1 و 2(0):e16648 (In Persian).