„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, Bd. 22, Nr. 2, S. 187–194, Mai 2019, Zugegriffen: 25. April 2026. [Online]. Verfügbar unter: https://ojshostng.com/index.php/ajbr/article/view/2260