. (1988). -. (e30751). Journal of Science,University of Tehran(not publish), 1 و 2(0), e30751

. "-" .e30751 , Journal of Science,University of Tehran(not publish), 1 و 2, 0, 1988, e30751.

. (1988). '-', Journal of Science,University of Tehran(not publish), 1 و 2(0), e30751.

, "-," Journal of Science,University of Tehran(not publish), 1 و 2 0 (1988): e30751,

. -. Journal of Science,University of Tehran(not publish). 1988;1 و 2(0):e30751 (In Persian).