. (1988). -. (e16659). Journal of Science,University of Tehran(not publish), 1 و 2(0), e16659

. "-" .e16659 , Journal of Science,University of Tehran(not publish), 1 و 2, 0, 1988, e16659.

. (1988). '-', Journal of Science,University of Tehran(not publish), 1 و 2(0), e16659.

, "-," Journal of Science,University of Tehran(not publish), 1 و 2 0 (1988): e16659,

. -. Journal of Science,University of Tehran(not publish). 1988;1 و 2(0):e16659 (In Persian).