Health and Safety Executive (HSE), HSE Acronyms and Abbreviations, HSE, Merseyside, England, UK 2012. www.hse.gov.uk/acronym/, (Hlth and Sfty - Brit) {716}
EDP - The Right Approach, Health & Safety Terms and Abbreviations, London, UK 2014. http://www.edp-uk.com/Resources/Health-Safety-Term s-and-Abbreviations, (Envir Hlth and Sfty - Brit) {768}
EDP - The Right Approach, Health & Safety Terms and Abbreviations, Health, Safety & Environment Consultants Ltd, UK 2010. http://www.edp-uk.com/glossary.htm, (Envir Hlth and Sfty - Brit) {50}