Vasishtha, A. R. Calculus of finite differences and Numerical Analysis : a course on numerical methods / A. R. Vasishtha, Vipin Vasishtha - New Delhi : Kedar Nath Ram Nath, 2004. - 436 p. : 20 cm. Subjects--Topical Terms: Numarical Analysis Dewey Class. No.: 518 / VAS 2004