WASET
    J. H. Park and  S. K. Lee and  Y. W. Kim and  D. C. Ko,  A Study on Manufacturing of Head-Part of Pipes Using a Rotating Manufacturing Process.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2015, vol. 107(11). 1913 - 1916
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10002679.