Mohamed, S.E., M.G. Khalifa, S.A. Sayed, A.M. Kamel, and M.E.H. Shalabi. “Removal of Lignin from Pulp Waste Water’s Black Liquor via By-Pass Cement Dust”. Eurasian Chemico-Technological Journal 11, no. 1 (January 20, 2009): 51–59. Accessed November 21, 2024. https://ect-journal.kz/index.php/ectj/article/view/678.