. (1978). -. (e14997). Journal of Environmental Studies, 8(8), e14997
. "-" .e14997 , Journal of Environmental Studies, 8, 8, 1978, e14997.
. (1978). '-', Journal of Environmental Studies, 8(8), e14997.
, "-," Journal of Environmental Studies, 8 8 (1978): e14997,
. -. JES. 1978;8(8):e14997 (In Persian).
