Dikran SB, Mohammed AK, Al-Jumaily AK. Univariate and Simplex Optimization for the Spectrophotometric Determination of Cimetidine and Erythromycin ethylsuccinate Drugs Using Bromothymol Blue Via Ion-Pair Formation. IHJPAS. 2017;23(3):170-189. Accessed March 26, 2025. https://jih.uobaghdad.edu.iq/index.php/j/article/view/922