Costanzo, Linda S. 2014. Physiology. Fifth edition. Philadelphia: Saunders/Elsevier. https://ebookcentral.proquest.com/lib/bristol/detail.action?docID=1479991.
Davies, Andrew, Asa G. H. Blakeley, Cecil Kidd, and J. G. McGeown. 2001. Human Physiology. Edinburgh: Churchill Livingstone.