Srivastava, K. K, V. J. Zacharias, A. K. Bhardwaj, Jomy Augustine, and Sherly Joseph. “A Preliminary Study on the Grasslands of Periyar Tiger Reserve, Kerala”. Indian Forester 120, no. 10 (October 1, 1994): 898–907. Accessed July 10, 2025. http://indianforester.co.in/index.php/indianforester/article/view/7784.