. (2003). . (e123915). Strategy, 11(1), e123915
. "" .e123915 , Strategy, 11, 1, 2003, e123915.
. (2003). '', Strategy, 11(1), e123915.
, "," Strategy, 11 1 (2003): e123915,
. . Strategy. 2003;11(1):e123915 (In Persian).
