G. I. Suasnavas-Díaz and M. C. Sarzosa-Troya, “Implications of the Foreign Currency Outflow Tax (ISD) on Ecuadorian Business Competitiveness, 2023–2024”, JESSR, vol. 6, no. 2, pp. 30–44, Apr. 2026, doi: 10.55813/gaea/jessr/v6/n2/238.