Chaikhun, T., R. Hengtrakunsin, F. D. Rensis, M. Techakumphu, and S. Suadsong. “Reproductive and Dairy Performances of Thai Swamp Buffaloes under Intensive Farm Management”. The Thai Journal of Veterinary Medicine, vol. 42, no. 1, July 2013, pp. 81-85, https://he01.tci-thaijo.org/index.php/tjvm/article/view/9861.