Gaya APA
Syukron, A., Kholil, M.
(2013).
Six Sigma: Quality for Business Improvement
(
Ed. 1)
.
Gorontalo:
Graha Ilmu.
Gaya MLA
Syukron, Amin., Kholil, Muhammad.
"Six Sigma: Quality for Business Improvement".
Ed. 1
Gorontalo:
Graha Ilmu,
2013.
Text.