72 Amos Toh and Deborah Brown, “How digital contact tracing for COVID-19 could worsen inequality”,Just Security, 4 June 2020. 可查阅 www.justsecurity.org/70451/how-digital-contact-tracing-for-covid-19-could-worsen-inequality/。
72 Amos Toh and Deborah Brown, “How digital contact tracing for COVID-19 could worsen inequality”, Just Security, 4 June 2020. Available from www.justsecurity.org/70451/how-digital-contact-tracing-for-covid-19-could-worsen-inequality/.