Kamalakar, G., et al. “Surgical Management of Dystocia Due to Dicephalus Iniodymus Monster Calf in a Graded Murrah Buffalo”. Buffalo Bulletin, vol. 37, no. 2, June 2018, pp. 249-52, https://kuojs.lib.ku.ac.th/index.php/BufBu/article/view/10.