هاجر ناصر, and علي حسن. “Preparation of a Selective Electrode for Determination of Lanthanum Ion (III) Using Carbon Paste Electrode”. Tishreen University Journal -Basic Sciences Series 44, no. 3 (August 3, 2022): 103–120. Accessed July 22, 2024. https://journal.tishreen.edu.sy/index.php/bassnc/article/view/13251.