. (2007). . (e124288). Strategy, 15(3), e124288
. "" .e124288 , Strategy, 15, 3, 2007, e124288.
. (2007). '', Strategy, 15(3), e124288.
, "," Strategy, 15 3 (2007): e124288,
. . Strategy. 2007;15(3):e124288 (In Persian).
