| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Christ and the Taurobolium: Lord Mithras in the Genesis of Christianity | 978-0-9540786-1-4 (0-9540786-1-6) | 2006 |
| Who Killed Jesus Christ?: The Synoptic Gospels Seen with Another Eye | 978-0-9540786-0-7 (0-9540786-0-8) | 2001 |