MOHAMMED, A. k . Development of Two New Spectrophotometeric Methods for the Determination of Amitriptyline in Pharmaceutical Preparation Using Univariate and Simplex Optimization. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 22, n. 4, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/1123. Acesso em: 28 mar. 2025.