Database for Captive Elephants in Kerala, made 2009 by Surendra Varma, E.K. Easwaran, T.S. Rajeev, Marshal.C.Radhakrishnan, S. R. Sujata and Nibha Namboodiri , India, available online at Database for Captive Elephants in Kerala Retrieved 2018-11-01.
Districtwise details of Captive Elephants of Kerala by Kerala Forest Department, India
