. (1971). -. (e17093). Journal of Science,University of Tehran(not publish), 4(0), e17093

. "-" .e17093 , Journal of Science,University of Tehran(not publish), 4, 0, 1971, e17093.

. (1971). '-', Journal of Science,University of Tehran(not publish), 4(0), e17093.

, "-," Journal of Science,University of Tehran(not publish), 4 0 (1971): e17093,

. -. Journal of Science,University of Tehran(not publish). 1971;4(0):e17093 (In Persian).