| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Case of the Hidden Enemies Trainers Guide | 978-88-88852-62-1 (88-88852-62-X) | 1992 |
| The Case of the Hidden Enemies Workbooks <Set of 6) | 978-88-88852-63-8 (88-88852-63-8) | 1992 |
J.D. Sainsbury · J.R.C. Sainsbury · J. S. · JC Sainsbury · John A. Sainsbury · John Sainsbury · M. J. Sainsbury