Gaya APA

Lindsay, J, R, E, D, W, M. (2007). Pengantar Six Sigma : An Introduction to Six Sogma & Prosess improvement . jakarta: Salemba Empat.

Gaya MLA

Lindsay, James, R., Evans, Dan, William, M.. "Pengantar Six Sigma : An Introduction to Six Sogma & Prosess improvement". jakarta: Salemba Empat, 2007. Text.