Pristiyono, P., Husain, H. and Harahap, A. 2022. Coffee Shop Marketing Innovation through Differentiation Strategies during COVID-19. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 5, 2 (Jul. 2022), 902-918. DOI:https://doi.org/10.31538/iijse.v5i2.3566.