Walldén, William. “Giraffe Giraffa Camelopardalis Feeding: How Stereotypies and Other Behaviours Changed at Kolmårdens Djurpark in Sweden”. Journal of Zoo and Aquarium Research 11, no. 4 (October 31, 2023): 393–399. Accessed October 14, 2024. https://jzar.org/jzar/article/view/789.