*''Concise Oxford English Dictionary, Tenth Edition, Revised''. Oxford University Press, In. (2002)
*''Concise Oxford English Dictionary, Tenth Edition, Revised''. Oxford University Press, In. (2002)
*''Webster's Third New International Dictionary of the English Language Unabridged''. G. & C. Merriam Company, Springfield, Massachusetts. U.S.A. (1961)
*''Webster's Third New International Dictionary of the English Language Unabridged''. G. & C. Merriam Company, Springfield, Massachusetts. U.S.A. (1961)