“Crystallized Ammonium Alum and Recovery of Ammonium Alum: Urea DES from Cellulose/DES Solution”, ANJS, vol. 24, no. 1, pp. 20–23, Mar. 2021, Accessed: Nov. 05, 2024. [Online]. Available: https://mail.anjs.edu.iq/index.php/anjs/article/view/2367