B. C · Bernd Clasen · Bernd Clausen · Brent Callaghan
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| In Focus Level 1 Student's Book with Online Resources | 978-1-107-62709-3 | 2013 | Charles Browne · Joseph Phillips |
| In Focus Level 1 Student's Book with Online Resources Bina Dharma Edition | 978-1-316-64975-6 | 2016 | Charles Browne · Joseph Phillips |
| In Focus Level 2 Student's Book Naresuan University Thai Edition: A Vocabulary, Reading and Critical Thinking Skills Course | 978-1-108-43441-6 | 2017 | Charles Browne · Joseph Phillips |
| In Focus Level 2 Student's Book with Online Resources | 978-1-107-69701-0 | 2013 | Charles Browne · Joseph Phillips |
| In Focus Level 3 Student's Book with Online Resources | 978-1-107-68007-4 | 2014 | Charles Browne · Joseph Phillips |