Evans, J. R. (2005). An Introduction to SIX SIMA & Process Improvement. Cengage Learning.
Chicago-čujuhus (17. p.)Evans, James R. An Introduction to SIX SIMA & Process Improvement. New Delhi: Cengage Learning, 2005.
MLA-čujuhus (9. p.)Evans, James R. An Introduction to SIX SIMA & Process Improvement. Cengage Learning, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.