. (1976). -. (e14884). Journal of Environmental Studies, 5(5), e14884
. "-" .e14884 , Journal of Environmental Studies, 5, 5, 1976, e14884.
. (1976). '-', Journal of Environmental Studies, 5(5), e14884.
, "-," Journal of Environmental Studies, 5 5 (1976): e14884,
. -. JES. 1976;5(5):e14884 (In Persian).
