Mustikawati, M., Fadila, F., & Muharir, M. (2019). ANALYSIS OF THE USING OF E-MONEY IN INDUSTRIAL REVOLUSTION 4.0. I-ECONOMICS: A Research Journal on Islamic Economics, 5(2), 164-182. https://doi.org/10.19109/https://doi.org/10.19109/ieconomics.v5i2.5025