Thongtip, N., Lorsanyaluck, B., Sukmak, M., Chaichanathong, S., Thengchaisri, N., Sunyathitiseree, P. and Wajjwalku, W. (2013) “Surgical Removal of Urethral and Bladder Stones in Female Asian Elephant (Elephas maximus) by Episiotomy and Urethrotomy”, The Thai Journal of Veterinary Medicine, 43(3), pp. 375–382. available at: https://he01.tci-thaijo.org/index.php/tjvm/article/view/12272 (accessed: 7 October 2026).