. (1979). -. (e14554). Journal of Environmental Studies, 9(9), e14554
. "-" .e14554 , Journal of Environmental Studies, 9, 9, 1979, e14554.
. (1979). '-', Journal of Environmental Studies, 9(9), e14554.
, "-," Journal of Environmental Studies, 9 9 (1979): e14554,
. -. JES. 1979;9(9):e14554 (In Persian).
