Maimunah, Ummi, Rudyanto Rudyanto, Poernomo Boedi Setiawan, Pangestu Adi, Iswan Abbas Nusi, and Hernomo Ontoseno Kusumobroto. “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, no. 1 (January 4, 2010): 19–25. Accessed October 25, 2026. https://www.ina-jghe.com/index.php/jghe/article/view/267.