Nguyen, H., A. Nguyen, and L. Tran. “Extension for Contract Performance under the CISG 1980 and Implications for Vietnamese Businesses”. VNUHCM Journal of Economics, Law and Management, Vol. 6, no. 2, June 2022, pp. 2689-00, doi:https://doi.org/10.32508/stdjelm.v6i2.944.