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 6, no. 2 (May 6, 2025): 1584–1594. Accessed May 20, 2026. https://dinastipub.org/DIJEFA/article/view/4451.