Ts, Z., S.-E. N, O. B, S. S, S. Ts, U. B, B. D, J. L, and O. E. “Technological Study on the Flotation Process of Manganese Ore”. Bulletin of the Institute of Chemistry and Chemical Technology, no. 8, Dec. 2020, pp. 50-54, doi:10.5564/bicct.v0i8.1478.