- Author: William Glenn Gray
- Language: English
- Author: William Glenn Gray
- Language: English
- Year: 2022
- Author: Ruud van Dijk William Glenn Gray Svetlana Savranskaya Jeremi Suri Qiang Zhai
- Language: English
- Year: 2008
- Author: William Glenn Gray
- Language: English
- Year: 2003
- Author: William Glenn Gray
- Language: English
- Year: 2003