Sumber Modern tentang Keraguan dan Skeptisisme
13. Russell, B. (1926). A History of Western Philosophy. New York: Simon & Schuster.
14. Descartes, R. (1998). Meditations on First Philosophy. Cambridge: Cambridge University Press.
15. Hossenfelder, S. (2018). Lost in Math: How Beauty Leads Physics Astray. New York: Basic Books.
Jurnal dan Artikel Ilmiah
16. Rahman, F. (1964). "Islamic Methodology in History," Journal of Near Eastern Studies, 23(1), 1-12.
17. Nasr, S. H. (1987). "Islam and the Problem of Modern Science," Islamic Studies, 26(1), 1-14.
18. Ibrahim, M. (2012). "Epistemology in the Qur'an: A Contemporary Perspective," Islamic Quarterly, 56(2), 145-163.
Sumber Pendukung Lainnya
19. Hawking, S., & Mlodinow, L. (2010). The Grand Design. London: Bantam Press.
20. Smith, W. C. (1957). Islam in Modern History. Princeton: Princeton University Press.
