. (2003). . (e123967). Strategy, 11(3), e123967
. "" .e123967 , Strategy, 11, 3, 2003, e123967.
. (2003). '', Strategy, 11(3), e123967.
, "," Strategy, 11 3 (2003): e123967,
. . Strategy. 2003;11(3):e123967 (In Persian).
