. (2007). . (e124226). Strategy, 15(1), e124226
. "" .e124226 , Strategy, 15, 1, 2007, e124226.
. (2007). '', Strategy, 15(1), e124226.
, "," Strategy, 15 1 (2007): e124226,
. . Strategy. 2007;15(1):e124226 (In Persian).
