Nuraini, F.R. and Muflikhah, N.D. 2026. A retrospective study of HBV reactivity among blood donors in Bojonegoro . Jurnal Cakrawala Promkes. 8, 1 (Feb. 2026), 1–7. DOI:https://doi.org/10.12928/jcp.v8i1.13840.