Heavy Metal Contamination of Top Soil at Auto-Repair Workshops in Wiiyaakara Town, Khana, River State, Nigeria. Nigerian Journal of Oil and Gas Technology, [S. l.], v. 4, n. 2, p. 163–183, 2025. Disponível em: https://rsustnjogat.org/ojs/index.php/home/article/view/136. Acesso em: 13 nov. 2026.