Nurpatmawati, Siti, Dedi Hariyanto, and Darusman. 2026. “The Influence of Instagram Content and Posting Frequency on Purchase Intention at Coffee Shop Elsana Pontianak”. Economics and Business Journal (ECBIS) 4 (5):2201-12. https://doi.org/10.47353/ecbis.v4i5.416.