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Murray, Alexander (2000). Suicide in the Middle Ages: The Curse on Self-Murder. Oxford University Press.

Stone, Geo (2001). "Hanging and Strangulation"[online version]. Suicide and Attempted Suicide: Methods and Consequences. Carroll & Graf.  30 July 2011.

Wyatt, Jonathan P.; Squires, Tim; Norfolk, Guy; et al. (2011). Oxford Handbook of Forensic Medicine. Oxford University Press.