| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Social Presence and Identity in Online Learning | 978-0-367-26624-0 (0-367-26624-5) | 2019 | Patrick R. Lowenthal |
| Virtual Professional Development and Informal Learning via Social Networks | 978-1-4666-1815-2 (1-4666-1815-9) | 2012 | |