. (1975). -. (e14764). Journal of Environmental Studies, 3(3), e14764
. "-" .e14764 , Journal of Environmental Studies, 3, 3, 1975, e14764.
. (1975). '-', Journal of Environmental Studies, 3(3), e14764.
, "-," Journal of Environmental Studies, 3 3 (1975): e14764,
. -. JES. 1975;3(3):e14764 (In Persian).
