Dutt, Ravi, et al. “Per-Vaginal Delivery of Homozygous Ascitic Twin Female Fetuses in a Primiparous Murrah Buffalo: A Rare Case”. Buffalo Bulletin, vol. 38, no. 4, Dec. 2019, pp. 691-3, http://kuojs.lib.ku.ac.th/index.php/BufBu/article/view/898.