. (2003). . (e123919). Strategy, 11(1), e123919
. "" .e123919 , Strategy, 11, 1, 2003, e123919.
. (2003). '', Strategy, 11(1), e123919.
, "," Strategy, 11 1 (2003): e123919,
. . Strategy. 2003;11(1):e123919 (In Persian).
