- Author: Birgittenkloster Uden, Oficina Regional de Desarrollo del Norte, Melville Gert
- Language: English
- Year: 2016
- Author: Berman Morris
- Language: English
- Year: 2004
- Author: Gert Melville
- Language: English, German
- Year: 2016
- Author: Constable Giles, Smith Bernard S.
- Language: English
- Year: 2008