- HörbuchInfluence with Integrity An Exploration of Ethical Principles Based Psychological InfluenceEdward Hamilton
- HörbuchHighly Effective Ways to Influence and Persuade PeopleEdward Hamilton
- HörbuchThe Dark Side of Influence and PersuasionEdward Hamilton
- HörbuchThe Power of Influence Mastering the Art of PersuasionEdward Hamilton
- HörbuchPsychology of Influence Based on Ethical PrinciplesEdward Hamilton