Fahruddin, F.; Samawi, M. F.; Tuwo, M.; Tanjung, R. E. The Effect of Heavy Metal Lead (Pb) on the Growth of Ammonia-Degrading Bacteria and Physical Changes of Eichhornia Crassipes in Groundwater Phytoremediation. Int. J. Adv. Sci. Eng. Inf. Technol. 2021, 11, 994-1000.