1. We may cite the following standard works: B. B. Datta and A. N. Singh, History of Hindu Mathematics, 2 parts, Lahore 1935, 1938, Reprint, Delhi 1962, 2001;
2. C. N. Srinivasa Iyengar, History of Indian Mathematics, Calcutta 1967;
3. A. K. Bag, Mathematics in Ancient and Medieval India, Varanasi 1979;
4. T. A. Saraswati Amma, Geometry in Ancient and Medieval India, Varanasi 1979;
5. G. C. Joseph, The Crest of the Peacock: The Non-European Roots of Mathematics, 2
nd
Ed., Princeton 2000.