. (2007). . (e124280). Strategy, 15(3), e124280
. "" .e124280 , Strategy, 15, 3, 2007, e124280.
. (2007). '', Strategy, 15(3), e124280.
, "," Strategy, 15 3 (2007): e124280,
. . Strategy. 2007;15(3):e124280 (In Persian).
