Simultaneous Determination of Paracetamol and Hyoscine-N- Butyl Bromide in Binary Mixture Using Derivative Spectrophotometry and Their Application for Pharmaceutical Samples. Al-Nahrain Journal of Science, [S. l.], v. 19, n. 1, p. 56–68, 2018. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/254.. Acesso em: 28 apr. 2024.