. (2005). . (e124090). Strategy, 13(1), e124090
. "" .e124090 , Strategy, 13, 1, 2005, e124090.
. (2005). '', Strategy, 13(1), e124090.
, "," Strategy, 13 1 (2005): e124090,
. . Strategy. 2005;13(1):e124090 (In Persian).
