
- Author: Geoffrey G. Jones(Editor)
- Language: English
- Year: 2002

- Author: Marinov Marin, Marinova Svetla Trifonova
- Language: English
- Year: 2018

- Author: Marinov Marin, Marinova Svetla Trifonova
- Language: English
- Year: 2018

- Author: Ching Kwan Lee
- Language: English
- Year: 2017

- Author: Bandelj Nina
- Language: English
- Year: 2008