EVALUATING THE LEVEL OF POLLUTANTS FROM SPENT DRILLING FLUIDS IN AN OIL FIELD IN NIGER DELTA. Nigerian Journal of Technology, [S. l.], v. 31, n. 3, p. 268–276, 2012. DOI: 10.4314/njt.313.553. Disponível em: https://nijotech.com/index.php/nijotech/article/view/553. Acesso em: 16 apr. 2026.