. (2003). . (e123912). Strategy, 11(1), e123912
. "" .e123912 , Strategy, 11, 1, 2003, e123912.
. (2003). '', Strategy, 11(1), e123912.
, "," Strategy, 11 1 (2003): e123912,
. . Strategy. 2003;11(1):e123912 (In Persian).
