Lalangpuling, I. E.; Dakio, Z. A.; Nikma, N.; Prihandono, D. S.; Lendawati, L. Incidence of Hepatitis B Surface Antigen (HBsAg) Infection and Its Relationship With Risk Factors at Janitors at Regional General Hospital Dr. M. M. Dunda Limboto Gorontalo. IJMLST 2023, 5, 68-78.