. (2004). . (e123984). Strategy, 11(4), e123984
. "" .e123984 , Strategy, 11, 4, 2004, e123984.
. (2004). '', Strategy, 11(4), e123984.
, "," Strategy, 11 4 (2004): e123984,
. . Strategy. 2004;11(4):e123984 (In Persian).
