| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| OHST Exam Flashcard Study System: OHST Test Practice Questions & Review for the Occupational Health and Safety Technologist Exam | 978-1-61072-394-7 (1-61072-394-5) | 2013 |
| OHST Exam Secrets Study Guide: OHST Test Review for the Occupational Health and Safety Technologist Exam | 978-1-61072-393-0 (1-61072-393-7) | 2017 |