. (1975). -. (e14773). Journal of Environmental Studies, 3(3), e14773
. "-" .e14773 , Journal of Environmental Studies, 3, 3, 1975, e14773.
. (1975). '-', Journal of Environmental Studies, 3(3), e14773.
, "-," Journal of Environmental Studies, 3 3 (1975): e14773,
. -. JES. 1975;3(3):e14773 (In Persian).
