Gaya APA

Evans, J, R., Lindsay, W, M. (2007). Pengantar six sigma = an introduction to six sigma and process improvement / James R. Evans, William M. Lindsay . Jakarta: Salemba Empat.

Gaya MLA

Evans, James, R.., Lindsay, William, M.. "Pengantar six sigma = an introduction to six sigma and process improvement / James R. Evans, William M. Lindsay". Jakarta: Salemba Empat, 2007. Buku.