1. Haley's Methods for Solving Equations
2. J. F. Traub,Iterative Methods for the Solution of Equations, Prentice-Hall, Inc., Englewood Cliffs, N.J., 1964.
3. Herman H. Goldstine,A History of Numerical Analysis from the 16th through the 19th Century, Springer-Verlag, New York, 1977.
4. O. Neugebauer and A. Sachs,Mathematical Cuneiform Texts, American Oriental Society, New Haven, Conn., 1945, pp. 42–43.