RP-HPLC Method for Simultaneous Quantification and Validation of Sofosbuvir and Velpatasvir in Bulk Drugs and Formulations. INTERNATIONAL JOURNAL OF ADVANCED RESEARCH AND REVIEW (IJARR), [S. l.], v. 10, n. 6, p. 18–43, 2025. DOI: 10.70914/. Disponível em: https://www.ijarr.org/index.php/ijarr/article/view/886.. Acesso em: 15 jul. 2026.