. (1992). -. (e25834). Journal of Economic Research (Tahghighat- E- Eghtesadi), 31(46), e25834
. "-" .e25834 , Journal of Economic Research (Tahghighat- E- Eghtesadi), 31, 46, 1992, e25834.
. (1992). '-', Journal of Economic Research (Tahghighat- E- Eghtesadi), 31(46), e25834.
, "-," Journal of Economic Research (Tahghighat- E- Eghtesadi), 31 46 (1992): e25834,
. -. J. Econ. Res.. 1992;31(46):e25834 (In Persian).
