. (2004). . (e123986). Strategy, 11(4), e123986
. "" .e123986 , Strategy, 11, 4, 2004, e123986.
. (2004). '', Strategy, 11(4), e123986.
, "," Strategy, 11 4 (2004): e123986,
. . Strategy. 2004;11(4):e123986 (In Persian).
