Vinod, T. R., and Jacob V. Cheeran. “Activity Time Budget of Asian Elephants (Elephas Maximus L.) in Idukki Wildlife Sanctuary, Kerala, South India”. Indian Forester 123, no. 10 (October 1, 1997): 948–951. Accessed December 6, 2025. http://indianforester.co.in/index.php/indianforester/article/view/6120.