GROSS ALPHA AND BETA RADIOACTIVITY IN CRUDE OIL-CONTAMINATED SEDIMENTS OF SOUTHERN DELTA STATE, NIGERIA. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 9, n. 2, p. 140–146, 2025. DOI: 10.33003/fjs-2025-0902-3265. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/3265. Acesso em: 2 sep. 2025.