Maimunah, U., Rudyanto, R., Setiawan, P. B., Adi, P., Nusi, I. A., & Kusumobroto, H. O. (2010). The Knowledge Level of Primary Care Physicians in Surabaya Primary Health Care Center Concering Hepatitis B. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, 11(1), 19–25. https://doi.org/10.24871/111201019-25