. (2004). . (e124001). Strategy, 12(1), e124001
. "" .e124001 , Strategy, 12, 1, 2004, e124001.
. (2004). '', Strategy, 12(1), e124001.
, "," Strategy, 12 1 (2004): e124001,
. . Strategy. 2004;12(1):e124001 (In Persian).
