. (1999). -. (e30724). Financial Research Journal, 4(13), e30724
. "-" .e30724 , Financial Research Journal, 4, 13, 1999, e30724.
. (1999). '-', Financial Research Journal, 4(13), e30724.
, "-," Financial Research Journal, 4 13 (1999): e30724,
. -. FRJ. 1999;4(13):e30724 (In Persian).
