1. Adams, A. R. D., and Maegraith, B. G. (1966). Clinical tropical diseases. 4th ed., p. 126. Oxford: Blackwell.
2. Some surgical aspects of filarial disease
3. Manson-Bahr, Sir P. H., Ed. (1954). Manson's tropical diseases. 14th ed., p. 784. Lond.: Cassell.