Costanzo, L. S. (2014). Physiology (Fifth edition). Saunders/Elsevier. https://ebookcentral.proquest.com/lib/bristol/detail.action?docID=1479991
Davies, A., Blakeley, A. G. H., Kidd, C., & McGeown, J. G. (2001). Human physiology. Churchill Livingstone.