Michaels, Christopher John, Amanda Ferguson, David McKendry, Jade Newton-Youens, and Catherine Whatley. “Failure to Improve Calcium Content of Earthworms (Dendrobaena Veneta) through Three Methods of Gut-Loading”. Journal of Zoo and Aquarium Research 9, no. 2 (April 30, 2021): 134–138. Accessed May 17, 2021. https://jzar.org/jzar/article/view/554.