Sachan, Vikas, et al. “Monocephalic Thoracopagus Tetrabrachius Tetrapus Monster in Murrah Buffalo- A Case Report”. Buffalo Bulletin, vol. 35, no. 1, Mar. 2016, pp. 23-26, https://kuojs.lib.ku.ac.th/index.php/BufBu/article/view/1153.