David Smyth · S D · Smyth Roger Semple David
Hodder & Stoughton · Hodder Education
| title | ISBN-13 | year of publication |
|---|---|---|
| Complete Thai Ty Ebk | 978-1-4441-2537-5 | 2010 |
| Get Talking Thai Blackberry App | 978-1-4441-9836-2 | 2013 |
| Get Talking Thai Digi | 978-1-4441-8342-9 | 2012 |
| Get Talking Thai in 10dys App | 978-1-4718-0528-8 | 2014 |
| Thai Course Ty App | 978-1-4441-9065-6 | 2013 |