| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Diminished Responsibility: With Special Interest to Singapore | 978-9971-69-138-7 (9971-69-138-8) | 1990 | Lee Peng Kok · Kuan Tsee Chee |
| Mental Disorders and the Law | 978-9971-69-188-2 (9971-69-188-4) | 1994 | Kok Lee Peng · Chee Kuan Tsee |