. (2004). -. (e11438). Journal of Economic Research (Tahghighat- E- Eghtesadi), 39(2), e11438
. "-" .e11438 , Journal of Economic Research (Tahghighat- E- Eghtesadi), 39, 2, 2004, e11438.
. (2004). '-', Journal of Economic Research (Tahghighat- E- Eghtesadi), 39(2), e11438.
, "-," Journal of Economic Research (Tahghighat- E- Eghtesadi), 39 2 (2004): e11438,
. -. J. Econ. Res.. 2004;39(2):e11438 (In Persian).
