| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Eritrean question: The conflict between the right of self-determination and the interests of states | 978-91-7678-240-8 (91-7678-240-9) | 1993 |
| The Principle of Self-Determination: A Philosophical, Historical and Legal Approach | 978-91-7970-150-5 (91-7970-150-7) | 1987 |