1. ASQ. (2007). Quality glossary, (2007), Quality Progress, pp. 39–59.
2. Fons, S. (2011). Measuring economic effects of quality management systems. The TQM Journal, 23(4), 458–474.
3. ISO 10012:2003. (2003). Measurement management systems – requirements for measurement processes and measurement equipment, ISO, www.iso.org
4. ISO 9001:2015. (2015). Quality management systems – requirements.
5. ISO/IEC 17025:2017. (2017). General requirements for the competence of testing and calibration laboratories, ISO, www.iso.org