Sulaiman, S. F. ., Sururi, W. ., Siregar, S. G. S. . and Yanti, A. . (2026) “The influence of customer service skills and user interface on dana e-wallet user loyalty”, International Journal of Applied Finance and Business Studies, 13(4), pp. 660–667. doi: 10.35335/ijafibs.v13i4.461.