Simultaneous Ratio Derivative Spectrophotometric Determination of Paracetamol, Caffeine and Ibuprofen in Their Ternary Form. Baghdad Sci.J [Internet]. 2022 Dec. 1 [cited 2024 Jul. 4];19(6):1276. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/6422