Ririn, H. 2026. The Effect of E-Wallet Application Use on Financial Management Efficiency in Small and Medium Enterprises (SMEs) in Umbulharjo District. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 9, 1 (Apr. 2026), 9847-9861. DOI:https://doi.org/10.31538/iijse.v9i1.9150.