. (1988). -. (e16640). Journal of Science,University of Tehran(not publish), 1 و 2(0), e16640

. "-" .e16640 , Journal of Science,University of Tehran(not publish), 1 و 2, 0, 1988, e16640.

. (1988). '-', Journal of Science,University of Tehran(not publish), 1 و 2(0), e16640.

, "-," Journal of Science,University of Tehran(not publish), 1 و 2 0 (1988): e16640,

. -. Journal of Science,University of Tehran(not publish). 1988;1 و 2(0):e16640 (In Persian).