Kusuma, F.; Fatima, I.; Yuningtyas, L. A.; Octaviani, D. "E-UMKM" Mobile Application to Increase Productivity and Competitiveness of MSMEs in the Digital Era: Evaluation and Implementation in the Digital Era . Vokasi Unesa Bull. Eng. Technol. Appl. Sci. 2024, 1, 48-60.