In Vitro Antioxidant Properties of Methanolic Leaf Extract of Vernonia Amygdalina Del. Nigerian Journal of Physiological Sciences, [S. l.], v. 29, n. 2, p. 091–101, 2021. Disponível em: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1812. Acesso em: 5 квіт. 2026.