Spectrophotometric determination of Diazepam and Propranolol hydrochloride in pharmaceutical by dual wavelengths method. Samarra Journal of Pure and Applied Science, [S. l.], v. 2, n. 2, p. 11–18, 2021. DOI: 10.54153/sjpas.2020.v2i2.108. Disponível em: https://www.sjpas.com/index.php/sjpas/article/view/108. Acesso em: 16 apr. 2026.