. (2001). . (e123729). Strategy, 8(4), e123729
. "" .e123729 , Strategy, 8, 4, 2001, e123729.
. (2001). '', Strategy, 8(4), e123729.
, "," Strategy, 8 4 (2001): e123729,
. . Strategy. 2001;8(4):e123729 (In Persian).
