Upadhyaya, Sanjib, and Saikia PK. “Study of Morphomatric Biology of Cotton Pygmy-Goose Nettapus Coromandelianus Coromandelianus Gmelin”. Journal of Research in Biology 1, no. 3 (July 18, 2011): 191-201. Accessed April 3, 2025. https://ojs.jresearchbiology.com/index.php/jrb/article/view/70.