Alexis Ukpe, Richard. “Evaluation of Polyaromatic Hydrocarbons in Soil from Crude Oil Spilled Sites in Ogbia Local Government Area of Bayelsa State, Nigeria”. Nigerian Journal of Pharmaceutical and Applied Science Research 10, no. 4 (January 22, 2024): 28–24. Accessed July 3, 2024. https://nijophasr.net/index.php/nijophasr/article/view/530.