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J. Christianidis. Classics in the History of Greek Mathematics, p. 260

Carl R. Seaquist, Padmanabhan Seshaiyer, and Dianne Crowley. "Calculation across Cultures and History" (Texas College Mathematics Journal 1:1, 2005; pp 15–31) [PDF]

Matthew Hubbard and Tom Roby. "The History of the Binomial Coefficients in the Middle East"(from "Pascal's Triangle from Top to Bottom")

Fuat Sezgin. Geschichte des arabischen Schrifttums (1974, Leiden: E. J. Brill)

James J. Tattersall. Elementary Number Theory in Nine Chapters, p. 32

Mariusz Wodzicki. "Early History of Algebra: a Sketch" (Math 160, Fall 2005) [PDF]

"al-Karaji" — Encyclopædia Britannica Online (4 April 2006)

Extrait du Fakhri, traité d'Algèbre par Abou Bekr Mohammed Ben Alhaçan Alkarkhi, presented with commentary by F. Woepcke, year 1853.