Okfriani, Coraima, and Evi Martha. “Barriers and Facilitators to Improving Routine Vaccination Coverage in East Aceh During the COVID-19 Pandemic: A Qualitative Study”. Berita Kedokteran Masyarakat 39, no. 05 (May 26, 2023): e7139. Accessed May 22, 2026. https://journal.ugm.ac.id/v3/BKM/article/view/7139.