. (2001). . (e123735). Strategy, 8(4), e123735
. "" .e123735 , Strategy, 8, 4, 2001, e123735.
. (2001). '', Strategy, 8(4), e123735.
, "," Strategy, 8 4 (2001): e123735,
. . Strategy. 2001;8(4):e123735 (In Persian).
