Vasishtha, A. R., & Vasishtha, V. (1992). Calculus of finite differences and numerical analysis: A course on numerical methods. Kedar nath ram nath.

Vasishtha, A. R., and Vipin Vasishtha. Calculus of Finite Differences and Numerical Analysis: A Course on Numerical Methods. New Delhi.: Kedar nath ram nath, 1992.

Vasishtha, A. R., and Vipin Vasishtha. Calculus of Finite Differences and Numerical Analysis: A Course on Numerical Methods. Kedar nath ram nath, 1992.