WASET
    Jean-Michel Sahut,  The Adoption and Diffusion of Electronic Wallets.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2008, vol. 17(5). 525 - 528
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10012.