Md. Ashikur Rahman Khan and  M. M. Rahman,  Mathematical Expression for Machining Performance.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2018, vol. 143(11). 208 - 213
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10009746.