1. P. Mitchell, T. Drozda, R. Bakerjian, C. Wick, J.T. Benedict, R.F. Veilleux, Tool and Manufacturing Engineers Handbook: Continuous improvement, Society of Manufacturing Engineers Publishing House, Michigan, 1998.
2. K. Zimniewicz, The contemporary conceptions and methods of management, PWN, Warszawa, 1999 (in Polish).
3. A. Hamrol, Quality management with examples, PWN, Warszawa, 2008 (in Polish).
4. H. Steinmann, G. Schreyoegg, Management. Fundamentals of enterprise management. Concepts, functions, examples, Technical University of Wroclaw Publishing House, Wrocław, 2001 (in Polish).
5. E. Skrzypek, Quality and effectiveness, UMCS, Lublin, 2002 (in Polish).