WASET
    Namchul Do and  Gyeongseok Chae,  A Framework for Product Development Process including HW and SW Components.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2007, vol. 12(12). 769 - 772
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/7599.