PASHA, C.; NARAYANA, B. A simple method for the spectrophotometric determination of cephalosporins in pharmaceuticals using variamine blue. Eclética Química, [S. l.], v. 33, n. 2, p. 41–46, 2008. DOI: 10.26850/1678-4618eqj.v33.2.2008.p41-46. Disponível em: https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/302. Acesso em: 19 oct. 2024.