Tay, Trisha, Josephine Kawi, Li Desheng, and Huang Yan. “Urine Collection Conditioning in Determining the Oestrous Cycle of a Captive Female Giant Panda Ailuropoda Melanoleuca”. Journal of Zoo and Aquarium Research 9, no. 1 (January 31, 2021): 55–60. Accessed November 21, 2024. https://jzar.org/jzar/article/view/498.