| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr |
|---|---|---|
| Establishing efficient operational work teams in private security: Investigating private security in South Africa | 978-3-8433-5449-3 (3-8433-5449-9) | 2010 |
| The impact of organisational culture on service delivery in G4S: An empirical investigation of a major private security company | 978-3-8383-0098-6 (3-8383-0098-X) | 2009 |