Osman Bakar. (1998). Classification of knowledge in Islam: A study in Islamic philosophies of science. Islamic Texts Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOsman Bakar. Classification of Knowledge in Islam: A Study in Islamic Philosophies of Science. Cambridge, UK: Islamic Texts Society, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOsman Bakar. Classification of Knowledge in Islam: A Study in Islamic Philosophies of Science. Islamic Texts Society, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.