| De Kracht Van Six Sigma | S. Chowdhury | Pearson Education |
| Lean Sigma | Wedgwood, Ian | |
| Six Sigma | Harry, Mikel J. | |
| Six SIGMA | SUMMERS, Donna C. S. | |
| All About Six Sigma | Brussee, Warren | |
| Lean Six Sigma for Dummies | ||
| Book of Beta Sigma Phi | ||
| The Last Oracle (sigma Force) | ||
| I Am a Sigma Gamma Rho Legacy | ||
| Lean Six Sigma For Dummies 3e | ||
| Six Sigma Instructor Guide | ||
| Leidinggeven aan Six Sigma | R. van Solingen | Uitgeverij Thema |
| The Six Sigma Memory Jogger II | ||
| Bloodline: A Sigma Force Novel: Signed | ||
| The Devil Colony (Sigma Force) | ||
| Map of Bones: A Sigma Force Novel Paperback | ||
| Lean Six Sigma Demystified | Arthur, Jay | |
| Black Order: A Sigma Force Novel | ||
| CMMI and Six SIGMA | Siviy, Jeannine M. | |
| The Judas Strain: A Sigma Force Novel |
