M. Said, D. Bahrain, and R. F. Fitri, “Treatment of Produce Water with a Combination of Electrocoagulation with Iron (Fe) Electrodes and Adsorption Using Silica and Activated Carbon”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 11, no. 1, pp. 204–212, Feb. 2021.