Iran, pp. 598-602 Ira Marvin Lapidus, A history of Islamic societies, p. 127 Richard Frye, The GoldenAge of Persia, p. 168 "Muslim conquest of Persia". Wikipedia
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ISBN 978-0-521-20093-6. The greatest of these figures, who ushered in the goldenage of Islamic medicine and who are discussed separately by E. G. Browne in his
p.305. Richard Frye, The GoldenAge of Persia, p. ۵۵–۵۹ Elton L. Daniel, The history of Iran, p. ۶۶, Greenwood Early Islamic World Umayyad Caliphate [۳]