I V, S.; A E, N.; M M, K.; Yu.L, S. Efficient Carbonaceous Sorbent Based on the Waste Sludge of Oil Extraction Industry for Purifying Wastewater from Petroleum Products. IJET 2018, 7 (2.23), 266-269. https://doi.org/10.14419/ijet.v7i2.23.11928.