| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr |
|---|---|---|
| Argument and Predicate Relations in Kiswahili: – A New Analysis of Transitiveness in Bantu | 978-3-89645-042-5 (3-89645-042-5) | 2001 |
| Classes in Kiswahili: A Study of Their Forms and Implications | 978-3-89645-022-7 (3-89645-022-0) | 1997 |