Amir Hossein Ghaffari Nejad and  Forouhar Ferdowsi and  Reza Mashhadi ,  Factors of Non-Conformity Behavior and the Emergence of a Ponzi Game in the Riba-Free (Interest-Free) Banking System of Iran.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2018, vol. 133(1). 67 - 75
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/10008425.