1. Sri Aurobindo Birth Centenary Library (SABCL);S Aurobindo,1972
2. S.K. Abhyankar (ed), Bījagaṇita of Bhāskarācārya, Bhaskaracharya Pratishthana (1980).
3. A.K. Bag, The Method of Integral Solution of Indeterminate Equations of the Type: by = ax ± c in Ancient and Medieval India, Indian J. History of Science 12(1) (1977), p 1–16.
4. E.J. Barbeau, Pell’s Equation, Springer (2003).
5. S. Barnard and J. Child, Higher Algebra, Macmillan (1936); Indian reprint (2001).