| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Open and Distance Education in Asia, Africa and the Middle East: National Perspectives in a Digital Age | 978-981-13-5786-2 (981-13-5786-2) | 2019 | Olaf Zawacki-Richter |
| Open and Distance Education in Australia, Europe and the Americas: National Perspectives in a Digital Age | 978-981-13-0297-8 (981-13-0297-9) | 2018 | " |