APA Style
Lubis, , D, S, P., Gaspersz, V. (2007).
Lean Six Sigma for Manufacturing and Service Industries (Cet 1).
Jakarta:
PT Gramedia Pustaka Utama.
MLA Style
Lubis, , Desain, Sampul,, Pagut., Gaspersz, Vincent.
"Lean Six Sigma for Manufacturing and Service Industries".
Cet 1
Jakarta:
PT Gramedia Pustaka Utama,
2007.
Monograf.