Alexander, Johann. 1693. Synopsis Algebraica. London: Benjamin Motte.
Apian, Peter. 1532. Quadrans Apiani astronomicus. Ingolstadt.
Chace, A. B. 1979. The Rhind Mathematical Papyrus. Reston, VA: The National Council of Teachers of Mathematics. Reprint.
Cocker, Edward. 1644. Arithmetick. London: John Hawkins.
Hodder, James. 1671. Arithmetick. 9th ed. London: Thomas Rooks.
Lam, Lay Yong, and Ang Tian Se. 1992. Fleeting Footsteps: Tracing the Concept of Arithmetic and Algebra in Ancient China. Singapore: World Scientific Press.
Moore, Jonas. 1681. A New System of Mathematicks. London: A. Godbid.
Recorde, Robert. 1543. The Ground of Artes. London: Reynold Wolff.
Smith. D. E. 1958. History of Mathematics. 2 vols. New York: Dover Publications. Reprint.
Swetz, Frank, and Jefferson Hartzler. 1991. Mathematical Modeling in the Secondary School Curriculum. Reston, VA: The National Council of Teachers of Mathematics.
Wilde, Lisa. 2014. ‘Whiche elles shuld farre excelle mans mynde’: Numerical Reason in Robert Recorde’s Ground of Artes (1543). Journal of the Northern Renaissance, http://www.northernrenaissance.org/whiche-elles-shuld-farre-excelle-mans-mynde-numerical-reason-in-robert-recordes-ground-of-artes-1543/.