. (2003). . (e123968). Strategy, 11(3), e123968
. "" .e123968 , Strategy, 11, 3, 2003, e123968.
. (2003). '', Strategy, 11(3), e123968.
, "," Strategy, 11 3 (2003): e123968,
. . Strategy. 2003;11(3):e123968 (In Persian).
