Suhartini, D. ., Prayogi, G. D. . and Akbar, F. S. . (2022) “Utilization of Digital Marketing for Micro, Small, and Medium Enterprises (UMKM) Affected by the Covid-19 Pandemic in Gubeng District, Surabaya City”, Nusantara Science and Technology Proceedings. Malang, Indonesia, 2022(24), pp. 50-56. doi: 10.11594/nstp.2022.2409.