References
- Brown, H. P., Panshin, A. J. & Forsaith, C. C., Test Book of Wood Technology, vol. II (McGraw-Hill Book Co. Inc., New York), 1952, 157–75.
- Sidney, Pickles, Electrical Communication, 22 (1945), No. 4, 266–67.
- Simon, Ramo & John, R. Whinnery, Fields and Waves in Modern Radio (John Wiley & Sons Inc., New York), 1953, 270–314.
- Reference Data for Radio Engineers (Federal Telephone & Radio Corporation, New York), 1949, 52.
- Rehman, M. A., Indian Forest Records, Utilization (New Series), 2 (1942), No. 10, 214 (Manager of Publications, Delhi).