John Dryden (1808). “The works of John Dryden: now first collected in eighteen volumes. Illustrated with notes, historical, critical, and explanatory, and a life of the author”, p.222
A. Devaraja Mudaliar, Maharshi Ramana (1968). “Day by Day with Bhagavan: From a Diary of A. Devaraja Mudaliar, Covering March 16, 1945 to January 4, 1947”