. (2005). . (e124073). Strategy, 12(4), e124073
. "" .e124073 , Strategy, 12, 4, 2005, e124073.
. (2005). '', Strategy, 12(4), e124073.
, "," Strategy, 12 4 (2005): e124073,
. . Strategy. 2005;12(4):e124073 (In Persian).
