Mohammed AK, Dikran SB, Alubydi MAS. Univariate and Simplex Optimization for The Analysis of Diphenhydramine-HCl Through Ion-pair Formation. IHJPAS. 2016;24(1). Accessed May 1, 2025. https://www.jih.uobaghdad.edu.iq/index.php/j/article/view/864