. (2003). . (e123955). Strategy, 11(3), e123955
. "" .e123955 , Strategy, 11, 3, 2003, e123955.
. (2003). '', Strategy, 11(3), e123955.
, "," Strategy, 11 3 (2003): e123955,
. . Strategy. 2003;11(3):e123955 (In Persian).
