. (2000). -. (e25832). Journal of Economic Research (Tahghighat- E- Eghtesadi), 35(2), e25832
. "-" .e25832 , Journal of Economic Research (Tahghighat- E- Eghtesadi), 35, 2, 2000, e25832.
. (2000). '-', Journal of Economic Research (Tahghighat- E- Eghtesadi), 35(2), e25832.
, "-," Journal of Economic Research (Tahghighat- E- Eghtesadi), 35 2 (2000): e25832,
. -. J. Econ. Res.. 2000;35(2):e25832 (In Persian).