. (2005). . (e124072). Strategy, 12(4), e124072
. "" .e124072 , Strategy, 12, 4, 2005, e124072.
. (2005). '', Strategy, 12(4), e124072.
, "," Strategy, 12 4 (2005): e124072,
. . Strategy. 2005;12(4):e124072 (In Persian).
