. (1975). -. (e14569). Journal of Environmental Studies, 2(2), e14569
. "-" .e14569 , Journal of Environmental Studies, 2, 2, 1975, e14569.
. (1975). '-', Journal of Environmental Studies, 2(2), e14569.
, "-," Journal of Environmental Studies, 2 2 (1975): e14569,
. -. JES. 1975;2(2):e14569 (In Persian).
