Secularism as a Bridge to Islamic Law fi al-Baldah al-Islamiyah Minhajin Nubuwwah (Dr. M. Agung Rahmadi, M.Si.)

Turner, Colin. Islam Without Allah? The Rise of Religious Externalism in Safavid Iran. London: Routledge, 2000.

Watt, W. Montgomery. Islamic Philosophy and Theology. Edinburgh: Edinburgh University Press, 1985.