WASET
    Soheila Raeisi and  Meng Lingjie,  The Importance of Customer Engagement and Service Innovation in Value Co-Creation.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2017, vol. 124(4). 822 - 827
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10006723.