Pintha Ulina Damanik, Yufitriana Amir, and Ganis Indriati. “Overview of Junior High School Students’ Knowledge About the Covid-19 Vaccine at SMPN 6 Pekanbaru”. HEALTH CARE: JURNAL KESEHATAN 12, no. 2 (December 28, 2023): 258-264. Accessed January 16, 2025. https://jurnal.payungnegeri.ac.id/index.php/healthcare/article/view/289.