Sinniha, Shobana, et al. “Two Step Synthesis and Application of Porous Carbon for Removal of Copper (II) from Wastewater: Statistical Optimization and Equilibrium Isotherm Analysis”. BioResources, vol. 19, no. 2, June 2024, pp. 3699-24, https://ojs.bioresources.com/index.php/BRJ/article/view/23226.