1. Choudhury, L.A., El-Baradie, M.A., (1998), Tool-life Prediction Model by Design of Experiments for Turning High Strength Steel (290BHN). Jour. Of Material Processing Technology, Elsevier, 319–326.
2. Levi, R., Rossetto, S., (1975), Some Considerations on Tool-life Scatter and its Implications. Jour. of Engineering for Industry.
3. Kuljanic, E., Random Strategy Method for Determining Tool-life Equations Annals of the CIRP, vol 29/1.
4. Montgomery, D.C., (1984) Design and Analysis of Experiments. 2nd ed., John Wiley and Sons, New York.
5. ISO 3685, Tool-life Testing with Single Point Turning Tools.