Rizki, A., E. Elvina, and A. Halim. “Digital Marketing Strategy to Increase Sales in Warkop Gelas Batu 5 Ahmad Yani Rantauprapat”. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), Vol. 5, no. 2, July 2022, pp. 988-99, doi:10.31538/iijse.v5i2.4126.