Nasser , Hajar, Faten Alaa Eddin, and Aloras Dunia. 2018. “Detection of the Optimal Analytical Conditions for the Determination of the Copper Ion Using Potentiometric Titration”. Tishreen University Journal -Basic Sciences Series 40 (4). https://journal.tishreen.edu.sy/index.php/bassnc/article/view/4585.