| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Colloquial Bulgarian | Paperback | 978-1-138-94963-8 | 2015 | Kjetil Ra Hauge |
| Colloquial Bulgarian | " | 978-0-415-44602-0 | 2007 | " |
| Colloquial Bulgarian | Audio Cassette | 978-0-415-31622-4 | 2006 | " |
| Colloquial Bulgarian | Audio CD | 978-0-415-31623-1 | 2006 | " |
| Colloquial Bulgarian | Paperback | 978-0-415-31624-8 | 2006 | kjetil ra hauge |
| Colloquial Bulgarian | " | 978-0-415-31625-5 | 2006 | Kjetil Ra Hauge |