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 24, no. 4 (April 30, 2020): 9630–9640. Accessed December 18, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/7269.