“Heavy Metals Contamination in Water, Soil and Plant Samples of Okomu National Park, Edo State, Nigeria”, AJBR, vol. 23, no. 1, पृ. 29–34, जन. 2020, अंतिम उपयोग: 10 जून, 2026. [ऑनलाइन]. पर उपलब्ध: https://www.ojshostng.com/index.php/ajbr/article/view/859