Hardy, F. (1983). Viraha-bhakti: The early history of Krsna devotion in South India. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHardy, Friedhelm. Viraha-bhakti: The Early History of Krsna Devotion in South India. Oxford University Press, 1983.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHardy, Friedhelm. Viraha-bhakti: The Early History of Krsna Devotion in South India. Oxford University Press, 1983.
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