Pham, T. C. A., M. H. Le, and T. K. O. Vu. “Generation Z Willingness to Pay for Sustainable Apparel: The Influence of Labelling for Origin and Eco-Friendly Material ”. Journal of International Economics and Management, vol. 20, no. 3, Dec. 2021, pp. 42-59, doi:10.38203/jiem.020.3.0015.