C. A. . Wahid, P. . Isyanto, and N. . Sumarni , Trans., “Analysis of the Effect of Promotion and Price on Buying Interest in Yummy Choice Coffee Gold at Indomaret”, WSBM, vol. 3, no. 03, pp. 623–632, Sep. 2025, doi: 10.58812/wsbm.v3i03.2198.