Supong, K., P. Usapein, and P. Polburee. “Analysis of Environmental Performances of Ferritization Method for the Treatment of Copper-Ammonia Wastewater under the Optimized Condition via RSM”. Applied Environmental Research, vol. 41, no. 3, Nov. 2019, pp. 42-56, doi:10.35762/AER.2019.41.3.4.