Gaya APA

Syukron, Amin, Kholil, Muhammad. (2013). Six sigma : Quality for business improvement . Yogyakarta: Graha Ilmu.

Gaya Chicago

Syukron, Amin, Kholil, Muhammad. Six sigma : Quality for business improvement. Yogyakarta: Graha Ilmu, 2013. Buku Tercetak.

Gaya MLA

Syukron, Amin, Kholil, Muhammad. Six sigma : Quality for business improvement. Yogyakarta: Graha Ilmu, 2013. Buku Tercetak.

Gaya Turabian

Syukron, Amin, Kholil, Muhammad. Six sigma : Quality for business improvement. Yogyakarta: Graha Ilmu, 2013. Buku Tercetak.