. (2003). . (e123965). Strategy, 11(3), e123965
. "" .e123965 , Strategy, 11, 3, 2003, e123965.
. (2003). '', Strategy, 11(3), e123965.
, "," Strategy, 11 3 (2003): e123965,
. . Strategy. 2003;11(3):e123965 (In Persian).
