- Author: Thomas Welsford
- Language: English
- Year: 2012
- Author: Johan Elverskog
- Language: English
- Year: 2003
- Author: Huaiyu Chen
- Language: English
- Year: 2018
- Author: Bayarsaikhan Dashdondog
- Language: English
- Year: 2010
- Author: Bayarsaikhan Dashdondog
- Language: English
- Year: 2011
- Author: Michael R. Drompp
- Language: English
- Year: 2005
- Author: David Durand-Guédy
- Language: English
- Year: 2013
- Author: edited by Paolo Sartori.
- Language: English
- Year: 2013
- Author: M. Hassan Kakar
- Language: English
- Year: 2006