N.K.ZAHIRA; P.N.PRESANNAKUMARAN. Application of three novel ratio difference spectrophotometric methods for the simultaneous estimation of zaltoprofen and paracetamol in combined dosage form. International Journal of Pharma and Bio Sciences, [S. l.], v. 9, n. 3, p. 1–12, 2018. DOI: 10.22376/ijpbs.2018.9.3.p1-12. Disponível em: https://ijpbs.net/index.php/journal/article/view/6468. Acesso em: 3 sep. 2026.