. (2003). . (e123853). Strategy, 10(4), e123853
. "" .e123853 , Strategy, 10, 4, 2003, e123853.
. (2003). '', Strategy, 10(4), e123853.
, "," Strategy, 10 4 (2003): e123853,
. . Strategy. 2003;10(4):e123853 (In Persian).
