. (1972). -. (e16524). Journal of Science,University of Tehran(not publish), 2(0), e16524

. "-" .e16524 , Journal of Science,University of Tehran(not publish), 2, 0, 1972, e16524.

. (1972). '-', Journal of Science,University of Tehran(not publish), 2(0), e16524.

, "-," Journal of Science,University of Tehran(not publish), 2 0 (1972): e16524,

. -. Journal of Science,University of Tehran(not publish). 1972;2(0):e16524 (In Persian).