1. Statistical Quality Design and Control, Contemporary concepts and methods;Devor,2007
2. Probabilistic and memberships approaches in the construction of control chart for linguistic data;Raz;Prod. Plan. Control,1990
3. On the construction of control charts using linguistic variables;Wang;Intell. J. Prod. Res.,1990
4. Control charts for process average and variability based on linguistic data;Kanagawa;Intell. J. Prod. Res.,1993
5. A fuzzy rule-based algorithm to improve the performance of statistical process control in quality systems;El-Shal;J. Intell. Fuzzy Syst.,2000