. (2001). . (e123765). Strategy, 9(2), e123765
. "" .e123765 , Strategy, 9, 2, 2001, e123765.
. (2001). '', Strategy, 9(2), e123765.
, "," Strategy, 9 2 (2001): e123765,
. . Strategy. 2001;9(2):e123765 (In Persian).
