| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| GED Preparation 2018-2019: GED Study Guide and Strategies with Practice Test Questions for the GED Test | 978-1-63530-263-9 (1-63530-263-3) | 2017 |
| Trivium GED Preparation 2019-2020 All Subjects: GED Exam Study Guide and Practice Test Questions | 978-1-63530-308-7 (1-63530-308-7) | 2019 |
| Trivium GED Study Guide 2020-2021 All Subjects: GED Preparation and Practice Test Questions Workbook for the GED Exam | 978-1-63530-747-4 (1-63530-747-3) | 2020 |