| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| The Paradox of Internet Groups: Alone in the Presence of Virtual Others | 978-0-367-32841-2 | 2019 | |
| The Social Unconscious in Persons, Groups and Societies: Mainly Theory | 978-0-367-10672-0 | 2019 | Earl Hopper |
| The Social Unconscious in Persons, Groups, and Societies: Volume 2: Mainly Foundation Matrices | 978-0-367-32882-5 | 2019 | " |
| The Social Unconscious in Persons, Groups, and Societies: Volume 3: The Foundation Matrix Extended and Re-configured | 978-0-367-32883-2 | 2019 | " |