. (2003). . (e123963). Strategy, 11(3), e123963
. "" .e123963 , Strategy, 11, 3, 2003, e123963.
. (2003). '', Strategy, 11(3), e123963.
, "," Strategy, 11 3 (2003): e123963,
. . Strategy. 2003;11(3):e123963 (In Persian).
