Akbar, Nurul, et al. “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, vol. 10, no. 1, Jan. 2009, pp. 7-13, doi:10.24871/10120097-13.