. (2003). -. (e11349). Financial Research Journal, 5(15), e11349
. "-" .e11349 , Financial Research Journal, 5, 15, 2003, e11349.
. (2003). '-', Financial Research Journal, 5(15), e11349.
, "-," Financial Research Journal, 5 15 (2003): e11349,
. -. FRJ. 2003;5(15):e11349 (In Persian).