. (2004). . (e124003). Strategy, 12(1), e124003
. "" .e124003 , Strategy, 12, 1, 2004, e124003.
. (2004). '', Strategy, 12(1), e124003.
, "," Strategy, 12 1 (2004): e124003,
. . Strategy. 2004;12(1):e124003 (In Persian).
