| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Bette Midler | 978-3-453-80047-2 (3-453-80047-8) | 1982 | ||
| Merton & Sufism: The Untold Story: A Complete Compendium | 978-1-887752-07-7 (1-887752-07-2) | 1999 | Gray Henry · Seyyed Hossein Nasr · William C. Chittick | |
| Sufi Orders, Lineages, and Saints: A Comprehensive Guide | 978-1-887752-19-0 (1-887752-19-6) | 1999 | Gray Henry | |