. (1999). -. (e14135). Financial Research Journal, 4(13), e14135
. "-" .e14135 , Financial Research Journal, 4, 13, 1999, e14135.
. (1999). '-', Financial Research Journal, 4(13), e14135.
, "-," Financial Research Journal, 4 13 (1999): e14135,
. -. FRJ. 1999;4(13):e14135 (In Persian).