- Author: Association for project management
- Language: English
- Year: 2018
- Author: Peter Parkes
- Language: English
- Year: 2011
- Author: Elizabeth Harrin
- Language: English
- Year: 2020
- Author: Association for project management
- Language: English
- Year: 2013
- Author: Association for project management
- Language: English
- Year: 2020
- Author: Association for project management
- Language: English
- Year: 2020
- Author: Martin Hopkinson
- Language: English
- Year: 2010