Novitasari, D., Ida Aryati, & Ratna Damayanti. (2021). Analysis e Marketing, Product Innovation, and Brand Image on Purchase Decisions Janji Jiwa Coffee in Surakarta. Jurnal Mantik, 4(4), 2495-2498. https://doi.org/10.35335/mantik.Vol4.2021.1197.pp2495-2498