. (2003). . (e123923). Strategy, 11(1), e123923
. "" .e123923 , Strategy, 11, 1, 2003, e123923.
. (2003). '', Strategy, 11(1), e123923.
, "," Strategy, 11 1 (2003): e123923,
. . Strategy. 2003;11(1):e123923 (In Persian).
