Times Higher Education Supplement. TSL Education Limited.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTimes Higher Education Supplement. TSL Education Limited.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTimes Higher Education Supplement. TSL Education Limited.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.