. (2005). . (e124067). Strategy, 12(4), e124067
. "" .e124067 , Strategy, 12, 4, 2005, e124067.
. (2005). '', Strategy, 12(4), e124067.
, "," Strategy, 12 4 (2005): e124067,
. . Strategy. 2005;12(4):e124067 (In Persian).
