1. [1] P.S. Adams. “Selecting ergonomics analysis tools”, in Proc ASSE Professional Development Conference and Exposition, American Society of Safety Engineers, 2005.
2. [2] D. Alexander. The Cost Justification Process. Auburn Engineers. Inc, Auburn, Alabama, 1999.
3. [3] D. Almeida. (2017). Exit the Cognitive Tunnel. Available: http://davidalmeidamd.com/category/cognition/.
4. [4] Arbetsmiljöverket. (2012). Physical problems for every week in 1991-2011. Available: https://www.av.se/globalassets/filer/statistik/arbetsmiljostatistik-arbetsmiljon-2011-rapport-2012_04.pdf.
5. [5] I. Bazovsky. Engineering design handbook- Maintainability engineering theory and practice. US Army Materiel Command, 1976.