. (2007). . (e124241). Strategy, 14(4), e124241
. "" .e124241 , Strategy, 14, 4, 2007, e124241.
. (2007). '', Strategy, 14(4), e124241.
, "," Strategy, 14 4 (2007): e124241,
. . Strategy. 2007;14(4):e124241 (In Persian).
