. (1979). -. (e14557). Journal of Environmental Studies, 9(9), e14557
. "-" .e14557 , Journal of Environmental Studies, 9, 9, 1979, e14557.
. (1979). '-', Journal of Environmental Studies, 9(9), e14557.
, "-," Journal of Environmental Studies, 9 9 (1979): e14557,
. -. JES. 1979;9(9):e14557 (In Persian).
