“Promethazine-HCl Determination Using Entrapped Persulphate in Water Crystals by Flow Injection Stopped - Flow Technique and Ayah 3SX3-3D Solar Cell Micro Photometer”. 2023. Iraqi Journal of Science 56 (1A): 25-37. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/10593.