1. Agency for Healthcare Research and Quality (AHRQ), 2016. PSNet Glossary. Patient Safety.Available in: https://psnet.ahrq.gov/glossary/p. (accessed June 6, 2019).
2. Requisite Variety and its Implications for the Control of Complex Systems;Ashby,1991
3. Safety activity analysis framework to evaluate safety performance in construction;Awolusi;J. Constr. Eng. Manage.,2016
4. Reviewing the safety management system by incident investigation and performance indicators;Basso;J. Loss Prev. Proc. Ind.,2004
5. Bellamy, L. & Sol, V., 2012. A Literature Review on Safety Performance Indicators Supporting the Control of Major Hazards. National Institute for Public Health and the Environment, Ministry of Health, Welfare and Sport. RIVM rapport 620089001/2012.