1. Kenneth Cragg, The Call of the Minaret, Oneworld Publications, 2003.
  2. Robert Morey, The Islamic Invasion: Confronting the World's Fastest Growing Religion. Harvest House, Oregon, 1992.
  3. Geoffrey Parrinder, Jesus in the Qur'an, Oneworld Publications, 1995.
  4. Ergun Mehmet Caner, Emir Fethi Caner, Unveiling Islam, Kregel Publications, 2001.
  5. Ali Merad, Christ According to the Qur'an, Encounter 1980-81: Documents for muslim-christian understanding n. 69, Roma, Pontifical Institute for Arabic and Islamic Studies (P.I.S.A.I.), November 1980.
  6. Chawkat Moucarry, The Prophet & the Messiah: An Arab Christian's Perspective on Islam & Chistianity, InterVarsity Press, 2001, 211.
  7. E.M. Hicham, Your Questions Answered: A Reply to Muslim Friends, Evangelical Press, 2008.
  8. Reza F. Safa, Inside Islam, Charisma House, 1996.
  9. E.M. Hicham, How shall they hear? Sharing your Christian faith with Muslims, Ambassador International, 2009, 136.
  10. Mark Cahill, One Heartbeat Away - Your Journey to Eternity, BDP Publishing, 2007.
  11. Josh McDowell and Don Stewart, Answers to Tough Questions, Living Books, 1980, 39.
  12. Ray Comfort, Hell's Best Kept Secret, Expanded Edition with Study Guide, Whitaker House, 1989, 107-118.
  13. Hans Küng, Der Islam, Geschichte, Gegenwart, Zukunf, Piper Verlag, 2004, 605.
  14. Kenneth Cragg, The Call of the Minaret, Oneworld Publications, 2003, 325.
  15. Rollin Armour, Sr., Islam, Christianity and the West; a troubled history, Orbis Books, 2002, 48.
  16. Sidney H. Griffith, The Gospel, the Qur'an, and Jesus in al-Ya'qubi's Ta'rilch, in: John C. Reeves, Bible and Qur'an, Essays in Scriptual Intertextuality, Brill, 2003.
  17. Faris Al-Qayrawani, Was Christ Really Crucified?, The Good Way, Rikon, 2010.
  18. Julian Baldick, Mystical Islam. An Introduction to Sufism, I.B. Tauris & Co Ltd Publishers, London, 1989, 15-22.
  19. William C. Chittick, Ibn Arabi and His School, Seyyed Hossein Nasr (ed.), Islamic Spirituality, New York, 1991, 49.
  20. A.E. Afifi, The Mystical Philosophy of Muhyi Din Ibnul 'Arabi, Lahore, 1964.
  21. J. Spencer Trimingham, The Sufi Orders in Islam, Clarendon Press, London, 1971, 163.
  22. Aurelius Augustine, The Confessions of Saint Augustine, Whitaker House, Hunt Valley Circle, 1996, Book Seven, 166-182.
  23. Aurelius Augustine, The City of God, Book 22, Chapter 27.
  24. Frederick Copleston S.J., A history of Philosophy, Book One, Volume II, Doubleday, New York, 1985, 51-52.
  25. Hans Küng, Islam, Past, Present & Future, Oneworld Publications, 2009, 154-155.
  26. Andrew R. Murphy (ed.), The Blackwell Companion to Religion and Violence, Wiley-Blackwell, Chichester, 2011, 276-277.
  27. Farad Khodrokhavar, Inside Jihadism, Understanding Jihadi Movements Worldwide, Paradigm Publishers, London, 2009, 64.
  28. Terrence J. Rynne, Gandhi and Jesus, The Saving Power of Nonviolence, Orbis Books, New York, 2008, 100-101
  29. M. Gopin, Between Eden and Armageddon: The future of world religions, violence, and peacemaking, Oxford University Press, New York, 2000.
  30. Brother Andrew and Al Janssen, Light Force. The Only Hope for the Middle East, Hoddler & Stoughton, London, 2008, 144-153, 212-228.
  31. Mark Beaumont, Christology In Dialogue With Muslims: A Critical Analysis Of Christian Presentations Of Christ For Muslims From The Ninth And Twentieth Centuries, Regnum Studies In Mission, Paternoster, Carlisle, 2005
  32. Wiebke Walther, Women in Islam, Markus Wiener Publishers, Princeton, 2006.
  33. Fatima Mernissi, Women and Islam, Basil Blackwell, Oxford, 1992, 195.
  34. Hans Küng, Islam, Past, Present & Future, Oneworld Publications, 2009, 209.