. (2001). . (e123751). Strategy, 9(1), e123751
. "" .e123751 , Strategy, 9, 1, 2001, e123751.
. (2001). '', Strategy, 9(1), e123751.
, "," Strategy, 9 1 (2001): e123751,
. . Strategy. 2001;9(1):e123751 (In Persian).
