Gaya APA
Evans, J, R., Lindsay, W, M. (2015).
An Introduction to Six Sigma & Process Improvement (2).
US (Canada):
Cengage Learning.
Gaya MLA
Evans, James, R., Lindsay, William, M.
"An Introduction to Six Sigma & Process Improvement".
2
US (Canada):
Cengage Learning,
2015.
Texts.