. (1999). -. (e14131). Financial Research Journal, 4(13), e14131
. "-" .e14131 , Financial Research Journal, 4, 13, 1999, e14131.
. (1999). '-', Financial Research Journal, 4(13), e14131.
, "-," Financial Research Journal, 4 13 (1999): e14131,
. -. FRJ. 1999;4(13):e14131 (In Persian).