Islam , K.M.A. 2026. DIGITAL PAYMENT SYSTEMS AND THE PERFORMANCE OF SMALL AND MEDIUM ENTERPRISES: THE MEDIATING ROLE OF TRANSACTION EFFICIENCY IN FINANCIAL INCLUSION AND INCLUSIVE ECONOMIC GROWTH. International Journal of Small and Medium Enterprises. 9, 1 (Oct. 2026), 25–36. DOI:https://doi.org/10.46281/ijsmes.v9i1.2968.