- Author: World Bank
- Language: English
- Year: 2016
- Author: Daniella Schittler
- Language: English
- Year: 2015
- Author: Mohan Kelkar, Godofredo Perez
- Language: English
- Year: 2001
- Author: Hans P. Berger
- Language: English
- Year: 2010
- Author: S. Martin, J.R. Williams
- Language: English
- Year: 2008
- Author: Grady Hanrahan
- Language: English
- Year: 2009
- Author: Chaoqun Liu, Qin Li, Yonghua Yan
- Language: English
- Year: 2017