„In Vitro Antioxidant Properties of Methanolic Leaf Extract of Vernonia Amygdalina Del”, NJPS, vol. 29, nr. 2, pp. 091–101, mai 2021, Data accesării: 22 mai 2026. [Online]. Disponibil la: http://ojshostng.com/index.php/njphysiologicalsciences/article/view/1814