. (2001). . (e123764). Strategy, 9(2), e123764
. "" .e123764 , Strategy, 9, 2, 2001, e123764.
. (2001). '', Strategy, 9(2), e123764.
, "," Strategy, 9 2 (2001): e123764,
. . Strategy. 2001;9(2):e123764 (In Persian).
