ASQ Certified Six Sigma Yellow Belt Handbook, Second EditionGovindarajan Ramu · First published 2022Open the Tome
The Certified Six Sigma Yellow Belt HandbookGovindarajan Ramu · First published 2017 · Latest edition 2021Open the Tome
The certified six sigma green belt handbookRoderick A., Ph.D. Munro, Matthew J. Maio, Mohamed B. Nawaz, Govindarajan Ramu, Daniel J. Zrymiak · First published 2008Open the Tome
