. (2004). . (e123982). Strategy, 11(4), e123982
. "" .e123982 , Strategy, 11, 4, 2004, e123982.
. (2004). '', Strategy, 11(4), e123982.
, "," Strategy, 11 4 (2004): e123982,
. . Strategy. 2004;11(4):e123982 (In Persian).
