. (2007). . (e124244). Strategy, 14(4), e124244
. "" .e124244 , Strategy, 14, 4, 2007, e124244.
. (2007). '', Strategy, 14(4), e124244.
, "," Strategy, 14 4 (2007): e124244,
. . Strategy. 2007;14(4):e124244 (In Persian).
