1. Act no. 135/1961 On roads (Road act), Slovak Republic.
2. Bartol, K.M., Martin, D.C., 1991. Management. New York: McGraw-Hill, ISBN 978-0070039261.
3. Broh, A.R., 1982. Managing Quality for Higher Profits: A Guide for Business Executives and Quality Managers. Boston: McGraw Hill Higher Education, ISBN 978-0070079755.
4. Buganová, K., Hudáková, M., 2011. Manažment rizika v podniku. Žilina: EDIS – Vydavateľstvo ŽU, ISBN 978-80554-0459-2.
5. Donabedian, A., 1980. Definition of Quality and Approaches to Its Assessment (Explorations in Quality Assessment and Monitoring. Health Administration Press, ISBN 978-0914904489.