Amaechi - Onyerimma, C. A. “Impact of Seasonal Variation of Heavy Metal Concentrations in Abattoir Effluents on Groundwater Quality in Port Harcourt Metropolis, Rivers State”. Web of Semantics : Journal of Interdisciplinary Science 3, no. 6 (June 28, 2025): 99–109. Accessed September 19, 2026. https://web.semanticjournals.org/index.php/wos/article/view/821.