Gaya APA

Lindsay, J, R, E, ;, W, M. (2007). An Introduction to Six Sigma & Process Improvement Pengantar Six Sigma . jakarta: Salemba Empat.

Gaya MLA

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