RP-HPLC Method Development and Validation for Simultaneous Estimation of Erlotinib and Ramucirumab in bulk and Pharmaceutical Dosage form  and its stability studies. International Journal of Pharmaceutical Sciences and Drug Research, [S. l.], v. 16, n. 3, p. 452–457, 2024. DOI: 10.25004/IJPSDR.2024.160318. Disponível em: https://ijpsdronline.com/index.php/journal/article/view/9553.. Acesso em: 18 sep. 2025.