محمد ع., محمد غفر and ماهر دعيس (2023) “Extraction of lanthanum (III) ion from aqueous solutions using Formazan reagent by liquid-liquid method”, Tishreen University Journal -Basic Sciences Series, 45(5), pp. 111–121. Available at: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/15624 (Accessed: 11May2024).