| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| CQI Exam Flashcard Study System: CQI Test Practice Questions & Review for the Certified Quality Inspector Exam | 978-1-60971-519-9 (1-60971-519-5) | 2013 |
| CQI Exam Secrets Study Guide: CQI Test Review for the Certified Quality Inspector Exam | 978-1-60971-518-2 (1-60971-518-7) | 2013 |