Phung, Siew Poh, and Valliappan Raju. “Determining the Utility of Blockchains in Payment System: Empirical Study Based on Business Proceedings”. International Journal of Psychosocial Rehabilitation, vol. 24, no. 4, Apr. 2020, pp. 9630-4, https://doi.org/10.61841/kn6qmb08.