Gaya APA

Lindsay, W, M., Evans, J, R. (2007). An Introduction to Six Sigma & Process Improvement. Pengantar Six Sigma (-). Jakarta: Salemba Empat.

Gaya MLA

Lindsay, William, M., Evans, James, R. "An Introduction to Six Sigma & Process Improvement. Pengantar Six Sigma". - Jakarta: Salemba Empat, 2007. .