Yulanda, Risqi, and Helman Fachri. “The The Influence of Instagram Social Media Marketing and Product Quality on Purchasing Decisions at Zaza Coffee in Pontianak”. Dinasti International Journal of Economics, Finance & Accounting, vol. 6, no. 2, May 2025, pp. 1584-9, doi:10.38035/dijefa.v6i2.4451.