Nicholas F. Gier (2014). The Origins of Religious Violence: An Asian Perspective. Lexington. pp. 11–14. ISBN978-0-7391-9223-8., Quote:
"In its peak of glory, ca. 1500, with a population of about 500,000 and sixty square miles in area, Vijayanagara was the second largest city in the world behind Beijing."
Hermann Kulke; Dietmar Rothermund (2004). A History of India. Routledge. p. 191. ISBN978-0-415-32920-0., Quote: "When battle was joined in January 1565, it seemed to be turning in favor of Vijayanagara - suddenly, however, two Muslim generals of Vijayanagara changes sides. Rama Raya was taken prisoner and immediately beheaded."
Verghese, Anila; Eigner, Dieter (1998). "A Monastic Complex in Vithalapura, Hampi Vijayanagara". South Asian Studies. 14 (1): 127–140. doi:10.1080/02666030.1998.9628555.
Fritz, John M. (1986). "Vijayanagara: Authority and Meaning of a South Indian Imperial Capital". American Anthropologist. 88 (1): 44–55. doi:10.1525/aa.1986.88.1.02a00030. S2CID143926888.
Lycett, Mark T.; Morrison, Kathleen D. (2013). "The Fall of Vijayanagara Reconsidered: Political Destruction and Historical Construction in South Indian History 1". Journal of the Economic and Social History of the Orient. 56 (3): 433–470. doi:10.1163/15685209-12341314.
Fritz, John M. (1986). "Vijayanagara: Authority and Meaning of a South Indian Imperial Capital". American Anthropologist. 88 (1): 44–55. doi:10.1525/aa.1986.88.1.02a00030. S2CID143926888.