Igberase, Ephraim, and Nastassia Thandiwe Sithole. “[Not Quotable] The Adsorption of Pb2+ and Ni2+ Ions Utilizing Modified Chitosan Beads: A Response Surface Methodology and Artificial Neural Network Modelling Study”. EQA - International Journal of Environmental Quality, vol. 61, May 2024, pp. 1-15, doi:10.6092/issn.2281-4485/18471.