Windi Ayuni, Tyus, et al. “The Effectiveness of Quick Response Code Indonesian Standard (QRIS) in Increasing MSME Transactions at Car Free Day in Merdeka Square, Medan”. Journal of Finance Integration and Business Independence, vol. 2, no. 1, May 2026, pp. 78-86, doi:10.64276/jofibi.v2i1.95.