Thu, T. H. T. ., D. N. . Huu, N. T. . Phong, N. T. . Trang, and L. G. . Han. “Measuring Fintech Development through Composite Indices: A Text-Mining-Based Review of Fintech Index Studies”. International Journal of Innovative Research and Scientific Studies, vol. 9, no. 6, June 2026, pp. 91-104, doi:10.53894/ijirss.v9i6.11737.