محمد ع, محمد غفر, ماهر دعيس. Extraction of lanthanum (III) ion from aqueous solutions using Formazan reagent by liquid-liquid method. TUJ-BA [Internet]. 2023Nov.19 [cited 2024May11];45(5):111-2. Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/15624