“Safety and Preliminary Immunogenicity of Recombinant Hepatitis B (Bio Farma) Vaccine in Adults and Children: A Phase 1 Clinical Trial”. Althea Medical Journal 10, no. 4 (December 31, 2023): 242–251. Accessed July 14, 2026. https://journal.fk.unpad.ac.id/index.php/amj/article/view/3279.