. (1975). -. (e14590). Journal of Environmental Studies, 2(2), e14590
. "-" .e14590 , Journal of Environmental Studies, 2, 2, 1975, e14590.
. (1975). '-', Journal of Environmental Studies, 2(2), e14590.
, "-," Journal of Environmental Studies, 2 2 (1975): e14590,
. -. JES. 1975;2(2):e14590 (In Persian).
