Assessment of heavy metals concentrations in soils and cassava(Manihot esculenta) from crude oil-polluted soils in Akwa Ibom State, Nigeria. The NOUN Journal of Agricultural Research and Development (NJARD), [S. l.], v. 1, n. 1, p. 37–47, 2025. Disponível em: http://3.79.110.175/agricjournal/index.php/NJARD/article/view/8. Acesso em: 7 jul. 2026.