Jafer, P. Muhammed, A. K. Bhardwaj, K. J. Peeyuskutty, and V. J. Zacharias. “Studies on the Aquatic Birds in Periyar Lake, Kerala”. Indian Forester 123, no. 10 (October 1, 1997): 929–934. Accessed February 17, 2026. https://indianforester.co.in/index.php/indianforester/article/view/6118.