. (1980). -. (e14784). Journal of Environmental Studies, 10(10), e14784
. "-" .e14784 , Journal of Environmental Studies, 10, 10, 1980, e14784.
. (1980). '-', Journal of Environmental Studies, 10(10), e14784.
, "-," Journal of Environmental Studies, 10 10 (1980): e14784,
. -. JES. 1980;10(10):e14784 (In Persian).
