[1]
G. CHENG, “疫區、口罩與無症狀感染者——新型冠狀病毒疫情如何破壞了我們的公共生活: Epidemic Areas, Masks, and the Asymptomatic - How Covid-19 has Hurt our Public Life”, ijccpm, vol. 18, no. 1, pp. 5–25, Jan. 2020.