- Historical Dictionary of the Kurds (2006)
- The Kurds of Iraq: A People and Their History (1991)
- The Ottoman Empire: A Historical Dictionary (1987)
- The Kurds: In Search Of the Future (1984)
Articles:
- The Kurdish Nationalist Movement: Past and Present (1982)
- The Kurdish Question: A Historical Overview (1980)
- The United States and the Kurds: A Historical Overview (1978)
- The Kurdish Question: A Historical Overview (1977)