Hamze Torabian and Mohammad Mehrabioun Mohammadi, Digital Transformation of Payment Systems Using Field Service Management. journal = {International Journal of Mechanical and Industrial Engineering}, [online]. World Academy of Science, Engineering and Technology. November 2020, vol. 168(12). 587 - 591 [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10011660.