Cambridge University Press · Oxford University Press
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| The Making of Vernacular Singapore English | Paperback | 978-1-108-73166-9 (1-108-73166-X) | 2019 |
| The Making of Vernacular Singapore English | Hardcover | 978-1-107-02208-9 (1-107-02208-8) | 2015 |
| The Structure of Tone | Paperback | 978-0-19-511880-3 (0-19-511880-4) | 1999 |