Method development of ramipril and atorvastatin calcium capsule by using simultaneous equation method and absorbance ratio method. Asian Journal of Pharmaceutics (AJP), [S. l.], v. 8, n. 4, p. 271–274, 2014. DOI: 10.22377/ajp.v8i4.453. Disponível em: http://www.asiapharmaceutics.info/index.php/ajp/article/view/453. Acesso em: 15 apr. 2026.