| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Symbols of 'the Way': Far East and West | 978-1-112-04821-0 (1-112-04821-9) | 2009 |
| The Temples of the Orient and Their Message, in the Light of Holy Scripture, Dante's Vision, and Bunyan's Allegory: -1902 | 978-1-112-29711-3 (1-112-29711-1) | 2009 |