Muhammad Aunurrochim, and Muhammad Adib bin Saharudin. “E-Wallet: A Study On Contracts Involved Within Its Operational Mechanism”. Journal of Fatwa Management and Research 26, no. 1 (October 1, 2021): 1–16. Accessed November 27, 2024. https://jfatwa.usim.edu.my/index.php/jfatwa/article/view/382.