Wardiana, Andri, and Ratih Asmana Ningrum. “Roferon-A: A Biologic Product of Human Interferon Alpha 2a”. Annales Bogorienses, vol. 19, no. 2, Dec. 2015, pp. 1-11, doi:10.14203/ann.bogor.2015.v19.n2.1-11.