- Author: Kally Forrest
- Language: English
- Year: 2011
- Author: W. Döhning Cloete Breytenbach
- Language: English
- Year: 1984
- Author: W. Döhning Cloete Breytenbach
- Language: English
- Year: 1984
- Author: coll.
- Language: Portuguese
- Year: 1984
- Author: coll.
- Language: Portuguese
- Year: 1989