. (2003). . (e123974). Strategy, 11(3), e123974
. "" .e123974 , Strategy, 11, 3, 2003, e123974.
. (2003). '', Strategy, 11(3), e123974.
, "," Strategy, 11 3 (2003): e123974,
. . Strategy. 2003;11(3):e123974 (In Persian).
