- Author: Peter Armstrong Bob Carter Chris Smith Theo Nichols
- Language: English
- Year: 2022
- Author: Andrea G. Rockall Andrew Hatrick Peter Armstrong Martin Wastie
- Language: English
- Year: 2013
- Author: Andrea G. Rockall Andrew Hatrick Peter Armstrong Martin Wastie
- Language: English
- Year: 2013
- Author: Peter Armstrong
- Language: English
- Year: 2019
- Author: Peter Armstrong
- Language: English
- Year: 2019
- Author: Stephen Barton Peter Armstrong
- Language: English
- Year: 2018
- Author: Peter Armstrong
- Language: English
- Year: 2000
- Author: Peter Armstrong
- Language: English
- Year: 2000
Hello! Flex 4
pdf
- Author: Peter Armstrong
- Language: Polish
- Year: 2013
- Author: Peter Armstrong (auth.)
- Language: English
- Year: 2005