- "World of Islam" web site. Islamic Web.
- A Turkish Effendi - on Christendom and Islam Anonymous
- The Life and Teachings of Muhammad by Annie Besant
- Theosophy and Islam by Zehra Bharucha
- Regarding Islamism by William Q. Judge
- A Pilgrimage into Light: Discovering Islamic Theosophy by Edward Mathew Taylor
- The World of Religious Beliefs and Practices: Islam by Robert Ellwood
- Heart of the Koran by Lex Hixon