National Research Council; Division on Earth and Life Studies; Board on Agriculture and Natural Resources; Committee on Minerals and Toxic Substances in Diets and Water for Animals (2006). Mineral Tolerance of Animals: Second Revised Edition, 2005. National Academies Press. p. 420. ISBN9780309096546. Archived from the original on 2017-01-16.
World Health Organization (2023). The selection and use of essential medicines 2023: web annex A: World Health Organization model list of essential medicines: 23rd list (2023). Geneva: World Health Organization. hdl:10665/371090. WHO/MHP/HPS/EML/2023.02.
National Research Council; Division on Earth and Life Studies; Board on Agriculture and Natural Resources; Committee on Minerals and Toxic Substances in Diets and Water for Animals (2006). Mineral Tolerance of Animals: Second Revised Edition, 2005. National Academies Press. p. 420. ISBN9780309096546. Archived from the original on 2017-01-16.