. (2003). . (e123916). Strategy, 11(1), e123916
. "" .e123916 , Strategy, 11, 1, 2003, e123916.
. (2003). '', Strategy, 11(1), e123916.
, "," Strategy, 11 1 (2003): e123916,
. . Strategy. 2003;11(1):e123916 (In Persian).
