Nwagbara, E. C., Onuoha, C. I., Umeoka, N. Pistia stratiotes Distribution in Njaba River: An Implication of Heavy Metals in Surface Water and Sediments. AJCMS. 2024;5(3). Accessed October 19, 2025. https://africanscholarpub.com/ajcms/article/view/382