. (2005). . (e124064). Strategy, 12(4), e124064
. "" .e124064 , Strategy, 12, 4, 2005, e124064.
. (2005). '', Strategy, 12(4), e124064.
, "," Strategy, 12 4 (2005): e124064,
. . Strategy. 2005;12(4):e124064 (In Persian).
