References
- Reza, F. M., Introduction to information theory (McGraw-Hill Book Co. Inc., N.Y.), 1961, 76–78, 108–110, 183–85.
- Shannon, C. E., Bell Syst. tech. J., 29 (1951), 147–60.
- Machave Prabhakar, Bharat ki 15 Bhashayaen (Star Publications, Darya Ganj, Delhi 6), September 1969.