PRINCEWILL-OGBONNA, Ijeoma L.; OGBONNA, Princewill C. Heavy Metal Content in Soil and Medicinal Plants in High Traffic Urban Area. Pakistan Journal of Nutrition, Pakistan, v. 10, n. 7, p. 618–624, 2011. DOI: 10.3923/pjn.2011.618.624. Disponível em: https://pjnonline.org/pjn/article/view/1461. Acesso em: 15 aug. 2025.