„Metal Contents and Acute Toxicity of Combined Vernonia amygdalina Leaves and Garcinia kola Seeds-VAGK, a Herbal and Nutritional Formulation in Male Wistar Rats”, AJBR, vol. 22, nr. 2, pp. 187–194, mai 2019, Data accesării: 6 iunie 2026. [Online]. Disponibil la: https://ojshostng.com/index.php/ajbr/article/view/2260