| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Intensive Course In Tongan. Discs 1-14 | 978-0-939154-70-8 (0-939154-70-6) | 2004 |
| Intensive Course in Tongan: With Numerous Supplementary Materials, Grammatical Notes, and Glossary | 978-0-939154-48-7 (0-939154-48-X) | 1971 |