. (2003). . (e123843). Strategy, 10(4), e123843
. "" .e123843 , Strategy, 10, 4, 2003, e123843.
. (2003). '', Strategy, 10(4), e123843.
, "," Strategy, 10 4 (2003): e123843,
. . Strategy. 2003;10(4):e123843 (In Persian).
