. (2008). . (e124289). Strategy, 15(4), e124289
. "" .e124289 , Strategy, 15, 4, 2008, e124289.
. (2008). '', Strategy, 15(4), e124289.
, "," Strategy, 15 4 (2008): e124289,
. . Strategy. 2008;15(4):e124289 (In Persian).
