| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2019 | 978-0-9823574-0-8 | Darren Twa | God's Value System |
| '' | 978-0-9823574-1-5 | '' | Emotions: Revealing Our Value Systems |
| '' | 978-0-9823574-2-2 | '' | Relationship and Value System: A Guide to Successful and Happy Relationships |