- Author: Prinz Asfa-Wossen Asserate
- Language: German
- Year: 2016
- Author: Asfa-Wossen Asserate
- Language: English
- Year: 2015
- Author: Asfa-Wossen Asserate
- Language: English
- Year: 2015
- Author: Asfa-Wossen Asserate, Goodhart David, Lewis Peter
- Language: English
- Year: 2018
- Author: Asfa-Wossen Asserate
- Language: English
- Year: 2018