共 5 条
[1]
The OECD Digital Services Trade Restrictiveness Index. OECD. Trade Policy Papers No. 221 . 2019
[4]
Measuring digital development 2019. ITU. https://www.itu.int/en/ITU-D/Statistics/Documents/facts/FactsFigures2019.pdf .
[5]
Digital Economy Report 2019. UNCTAD. https://unctad.org/en/pages/PublicationWebflyer.aspx?publicationid= 2466 .

