Simultaneous Ratio Derivative Spectrophotometric Determination of Paracetamol, Caffeine and Ibuprofen in Their Ternary Form. Baghdad Science Journal, Iraq, Baghdad, v. 19, n. 6, p. 1276, 2022. DOI: 10.21123/bsj.2022.6422. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6422.. Acesso em: 28 apr. 2024.