WASET
    Bo Wun Huang and  Ah Der Lin and  Yung Chuan Chen and  Jao Hwa Kuang,  A Dynamic Model for a Drill in the Drilling Process.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2008, vol. 17(5). 752 - 758
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/12104.