ZAIDAN, J. . A. R. Natural Occurring Radioactive Materials (NORM) in the oil and gas industry. Journal of Petroleum Research and Studies, [S. l.], v. 1, n. 1, p. 4-21, 2010. DOI: 10.52716/jprs.v1i1.22. Disponível em: https://jprs.gov.iq/index.php/jprs/article/view/22. Acesso em: 16 may. 2024.