. (2007). . (e124277). Strategy, 15(3), e124277
. "" .e124277 , Strategy, 15, 3, 2007, e124277.
. (2007). '', Strategy, 15(3), e124277.
, "," Strategy, 15 3 (2007): e124277,
. . Strategy. 2007;15(3):e124277 (In Persian).
