. (1978). -. (e14984). Journal of Environmental Studies, 8(8), e14984
. "-" .e14984 , Journal of Environmental Studies, 8, 8, 1978, e14984.
. (1978). '-', Journal of Environmental Studies, 8(8), e14984.
, "-," Journal of Environmental Studies, 8 8 (1978): e14984,
. -. JES. 1978;8(8):e14984 (In Persian).
