. (2001). . (e123795). Strategy, 9(3), e123795
. "" .e123795 , Strategy, 9, 3, 2001, e123795.
. (2001). '', Strategy, 9(3), e123795.
, "," Strategy, 9 3 (2001): e123795,
. . Strategy. 2001;9(3):e123795 (In Persian).
