Elisabet Spina · Elisabeth Sebaoun
Elizabeth Sabine · Vendera Publishing
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Strengthening Your Singing Voice | 978-0-9749411-7-2 (0-9749411-7-4) | 2008 |
| Unleash the Passion in Your Voice | 978-0-9660123-1-6 (0-9660123-1-3) | 1998 |
| Unleash The Passion In Your Voice | 978-0-9660123-4-7 (0-9660123-4-8) | 1998 |