- Author: Editors of REA
- Language: English
- Year: 2013
- Author: Mel Friedman
- Language: English
- Year: 2009
- Author: Stan Yorke, Trevor Yorke
- Language: English
- Year: 2013
- Author: David W. Grissmer, Peter A. Wilson, B. David Mussington
- Language: English
- Year: 2000
- Author: Norman J. Ornstein, Thomas E. Mann, Michael J. Malbin
- Language: English
- Year: 2008
- Author: Ina Pietschmann, Steven Kapsos, Evangelia Bourmpoula, Zurab Sajaia, Michael Lokshin
- Language: English
- Year: 2016
- Author: Laurie Grahm Dodge
- Language: English
- Year: 2003
- Author: Леонард Апельцин
- Language: Русский
- Year: 2023
- Author: Tukufu Zuberi, Amson Sibanda, Eric O. Udjo
- Language: English
- Year: 2005
- Author: World Bank
- Language: English
- Year: 2008