<ul><li><a href=https://uncitral.un.org/en/texts/ecommerce/conventions/electronic_communications/status target=_blank>UN Convention on the Use of Electronic Communications in International Contracts(Adopted in New York, 23 November 2005. Entered in force 1 March 2013, Status of the Convention, last accessed 10 April 2018)</a></li><li><a href=https://uncitral.un.org/sites/uncitral.un.org/files/media-documents/uncitral/en/19-09951_e_ebook.pdf target=_blank>United Nations Convention on Contracts for the International Sale of Goods(Vienna, 11 April 1980, Entry into force 1 January 1988)</a></li><li><a href=http://www.pgrweb.go.cr/scij/Busqueda/Normativa/Normas/nrm_texto_completo.aspx?param1=NRTC&nValor1=1&nValor2=83622&nValor3=107564&strTipM=TC target=_blank>Parliament ratification of the United Nations Convention on Contracts for the International Sale of Goods (CISG)(Ley 9421 Adhesión a la Convención de las Naciones Unidas sobre los contratos de compraventa internacional de mercaderías, implemented 7 February 2017)</a></li></ul>