GANGADHARAN, B, S MANUMOHAN, P O GEORGE, and A RAJAN. “Cholangiocellular Carcinoma in a Lion (Panthera Leo)”. The Indian Journal of Animal Sciences 64, no. 9 (June 27, 2013). Accessed October 24, 2025. https://epubs.icar.org.in/index.php/IJAnS/article/view/30979.