Ali, I., Ali, S., Iqbal, S., & Iqbal, S. (2021). COVID-19 Vaccination: Concerns About Its Accessibility, Affordability, and Acceptability. Frontiers Media S.A.
Chicago-referens (17:e uppl.)Ali, Inayat, Shahbaz Ali, Sehar Iqbal, och Sehar Iqbal. COVID-19 Vaccination: Concerns About Its Accessibility, Affordability, and Acceptability. Frontiers Media S.A, 2021.
MLA-referens (9:e uppl.)Ali, Inayat, et al. COVID-19 Vaccination: Concerns About Its Accessibility, Affordability, and Acceptability. Frontiers Media S.A, 2021.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.