Akbar, N. et al. 2009. Efficacy and Safety of In-Asia-manufactured Interferon alpha-2b in Combination with Ribavirin for Therapy of Naïve Chronic Hepatitis C Patients: A Multicenter, Prospective, Open-Label Trial. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy. 10, 1 (Jan. 2009), 7–13. DOI:https://doi.org/10.24871/10120097-13.