Brussee, W. (2010). Six Sigma On A Budget. Tata McGraw-Hill.
Chicago-čujuhus (17. p.)Brussee, Warren. Six Sigma On A Budget. New Delhi: Tata McGraw-Hill, 2010.
MLA-čujuhus (9. p.)Brussee, Warren. Six Sigma On A Budget. Tata McGraw-Hill, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.