KOUMANOVA, B., M. Drame, ., Popangelova, M. Use of guinean red sludge, a residue of Bayer's process for alumina production in water treatment. 1995 с. 75-78,.
KOUMANOVA, B., M. Drame, ., Popangelova, M. Use of guinean red sludge, a residue of Bayer's process for alumina production in water treatment. 1995 с. 75-78,.
KOUMANOVA, B., M. Drame, ., Popangelova, M. (1995) Use of guinean red sludge, a residue of Bayer's process for alumina production in water treatment, с. 75-78,.
KOUMANOVA, B., M. Drame, ., & Popangelova, M. (1995). Use of guinean red sludge, a residue of Bayer's process for alumina production in water treatment. I.Composition and possible application for water clarification. с. 75-78.
KOUMANOVA B, M. Drame, Popangelova M. Use of guinean red sludge, a residue of Bayer's process for alumina production in water treatment: I.Composition and possible application for water clarification. 1995. p. с. 75-78.