1. MacLean P. D., The Triune Brain in Evolution: Role in Paleocerebral Functions 1990th Edition, Springer; 1990, ISBN 978-0274767571.
2. The European Framework Directive on Safety and Health at Work: https://osha.europa.eu/en/legislation/directives/the-osh-framework-directive/the-osh-framework-directive-introduction, examined on November 1st, 2023
3. Mizuno S., Company Wide Total Quality Control Paperback, Asian Productivity Org., 1987, ISBN 978-9283311003.
4. Taiichi Ō, Toyota Production System: Beyond Large-scale Production, Productivity Press Inc., 1995, ISBN 0-915299-14-3.
5. Murrell, K. F. H., Ergonomics: Man in His Working Environment, Chapman And Hall, 1969, ISBN 9780412078002.