Shi-syan, V., D. Jumaeva, I. Eshmetov, and A. Agzamhodjaev. “Cleanup of Waste Water from Inorganic Impurities and Petroleum by Coal-Based Adsorbents”. Chemical Bulletin of Kazakh National University 67, no. 3 (September 25, 2012): 163-166. Accessed May 1, 2024. https://bulletin.chemistry.kz/index.php/kaznu/article/view/227.