Inaki Maulida Hakim and  T. Yuri M. Zagloel and  Astari Wulandari,  Framework Study on Single Assembly Line to Improve Productivity with Six Sigma and Line Balancing Approach.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2016, vol. 118(10). 1822 - 1827
    [viewed 16 May 2021]. Available from: https://publications.waset.org/pdf/10005675.