. (2006). . (e124158). Strategy, 13(4), e124158
. "" .e124158 , Strategy, 13, 4, 2006, e124158.
. (2006). '', Strategy, 13(4), e124158.
, "," Strategy, 13 4 (2006): e124158,
. . Strategy. 2006;13(4):e124158 (In Persian).
