| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| COLT Exam Flashcard Study System: COLT Test Practice Questions & Review for the Certified Office Laboratory Technician Examination | 978-1-60971-454-3 (1-60971-454-7) | 2013 |
| COLT Exam Secrets Study Guide: COLT Test Review for the Certified Office Laboratory Technician Examination | 978-1-60971-453-6 (1-60971-453-9) | 2013 |