1. L. H. C. Tippett, Random Sampling Numbers (41,600), Tracts for Computers, No. 15, Cambridge University Press, 1927.
2. M. G. Kendall & B. B. Smith, Random Sampling Numbers (100,000), Tracts for Computers, No. 24, Cambridge University Press, 1939.
3. Table of 105,000 𝜒̄ Random Decimal Digits, Interstate Commerce Commission, Bureau of Transport Economics and Statistics, Statement No. 4914, Washington, D. C., May 1949.
4. A statistical analysis of the first 2,500 decimal places of 𝑒 and 1/𝑒;Pathria, R. K.;Proc. Nat. Inst. Sci. India Part A,1961