El-Dars, F.M. S.E., A-E. O. Sayed, B. A. Salah, and M. E.H. Shalabi. “Removal of Nickel (II) from Aqueous Solution Via Carbonized Date Pits and Carbonized Rice Husks”. Eurasian Chemico-Technological Journal 13, no. 3-4 (December 22, 2011): 267–277. Accessed April 30, 2024. https://ect-journal.kz/index.php/ectj/article/view/464.