Donel S., Kemal RA, Savira M, Rustam RP. Seroprevalence of Anti-SARS-CoV-2 Among Pregnant Women Prior to COVID-19 Vaccination in Pekanbaru, Riau. Nusantara Sci. Tech. Proc. [Internet]. 2022 Dec. 9 [cited 2025 Jun. 24];:70-2. Available from: https://nstproceeding.com/index.php/nuscientech/article/view/828