Arnett Wilkes · W.A. · Wilkes a
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Complete Zulu Teach Yourself | 978-1-4441-7324-6 (1-4441-7324-3) | 2012 |
| Complete Zulu Teach Yourself | 978-1-4441-7360-4 (1-4441-7360-X) | 2012 |
| Zulu Course Ty App | 978-1-4441-9086-1 (1-4441-9086-5) | 2013 |