«In Vitro Antioxidant Properties of Methanolic Leaf Extract of Vernonia Amygdalina Del», NJPS, vol. 29, fasc. 2, pp. 091–101, mag. 2021, Consultato: 6 aprile 2026. [Online]. Disponibile su: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1812