. (2001). . (e123759). Strategy, 9(2), e123759
. "" .e123759 , Strategy, 9, 2, 2001, e123759.
. (2001). '', Strategy, 9(2), e123759.
, "," Strategy, 9 2 (2001): e123759,
. . Strategy. 2001;9(2):e123759 (In Persian).
