- Author: Kjetil Tronvoll Charles Schaefer Girmachew Alemu Aneme (eds.)
- Language: English
- Year: 2009
- Author: Kjetil Tronvoll, Tobias Hagmann
- Language: English
- Year: 2011
- Author: Kjetil Tronvoll, Daniel R. Mekonnen
- Language: English
- Year: 2014
- Author: Kjetil Tronvoll
- Language: English
- Year: 2009