- Author: Gudrun Kochendorfer-Lucius, Boris Pleskovic
- Language: English
- Year: 2008
- Author: David H. Feeny
- Language: English
- Year: 1982
- Author: Peter H. Pearse
- Language: English
- Year: 1990
- Author: Csaba Csaki, Zvi Lerman, Sergey Sotnikov, World Bank
- Language: English
- Year: 2000
- Author: Helena Hansson, Karin Larsén, Bo Öhlmér
- Language: English
- Year: 2009
- Author: Russell H. Jeffries
- Language: English
- Year: 2009
- Author: Mark Friedberger
- Language: English
- Year: 1989
- Author: Ashutosh Kumar Tripathi
- Language: English
- Year: 2014
- Author: Heinrich Wohlmeyer, Theodor Quendler
- Language: English
- Year: 2002
