. (1987). -. (e14354). Journal of Environmental Studies, 14(14), e14354
. "-" .e14354 , Journal of Environmental Studies, 14, 14, 1987, e14354.
. (1987). '-', Journal of Environmental Studies, 14(14), e14354.
, "-," Journal of Environmental Studies, 14 14 (1987): e14354,
. -. JES. 1987;14(14):e14354 (In Persian).
