| title | ISBN-13 | year of publication |
|---|---|---|
| be Slaves and Slavery in Muslim Africa: Volume One: Islam and the Ideology of Enslavement | 978-1-138-98209-3 | 2016 |
| In the Path of Allah | 978-1-138-97246-9 | 2016 |
| Slaves and Slavery in Africa: Volume Two: The Servile Estate: 2 | 978-1-138-98208-6 | 2016 |
| Studies in West African Islamic History: The Cultivators of Islam: 1 | 978-1-138-23834-3 | 2017 |
| Studies in West African Islamic History: Volume 1: The Cultivators of Islam, Volume 2: The Evolution of Islamic Institutions & Volume 3: The Growth of Arabic Literature: Cultivators of Islam v. 1 | 978-0-7146-1737-4 | 1979 |
J R · J. R. Willis · J. Ralph · J. W. · J. Willis · John R. · John W. · John Willis · R. Willis · Ralph W.