. (1975). -. (e14763). Journal of Environmental Studies, 3(3), e14763
. "-" .e14763 , Journal of Environmental Studies, 3, 3, 1975, e14763.
. (1975). '-', Journal of Environmental Studies, 3(3), e14763.
, "-," Journal of Environmental Studies, 3 3 (1975): e14763,
. -. JES. 1975;3(3):e14763 (In Persian).
