M. A. Ordoñez Izquierdo, I. M. Feijoo Jaramillo, M. T. Mite Albán, C. J. Viteri Escobar, and C. B. Sarmiento Chugcho, “Perception of Sustainable Fashion among millennials in Machala: Trends, Challenges, and Opportunities for Brands”, Revista UG, vol. 140, no. 1, pp. 47–68, Jan. 2026, doi: 10.53591/rug.v140i1.2489.