1. The National Archives, Kew
2. Roden A.C. (2021) Diffuse Malignant Mesothelioma. https://www.pathologyoutlines.com/topic/pleuramesothelioma.html (accessed 13/03/2023).
3. BBC (British Broadcasting Corporation) (2021) CEO Secrets: ‘My billion pound company has no HR department’. https://www.bbc.co.uk/news/business-56130187 (accessed 02/03/2023).