High Prevalence of Hepatitis B Among Secondary School Students: Implications for Vaccination Programs and Public Health. JURNAL PROTEKSI KESEHATAN, [S. l.], v. 14, n. 1, p. 17–28, 2025. DOI: 10.36929/jpk.v14i1.913. Disponível em: https://jurnal.pkr.ac.id/JPK/article/view/913. Acesso em: 18 jan. 2026.