Veerwal, Hina, Satish Balapure, and Vipin Vyas. 2014. “Diversity and Conservation Status of Water Birds at Upper Lake, Bhopal – A Ramsar Site in Central India”. Journal of Research in Biology 4 (8), 1534-42. https://ojs.jresearchbiology.com/ojs1/index.php/jrb/article/view/512.